ATI TEAS 7 Science Practice Qs with Smart Edition Academy 2023 (25 questions with Explained Answers)

today I'm going to address the number one question that I get on all of my atit's videos and that is who do you recommend for practice questions well you're in for a treat because not only do I have the answer for you but I also partnered with them to help you be successful on your atits test can I get a drum roll please introducing smart Edition Academy after extensive researching and trying out various other products I can confidently say at smart Edition Academy stands out for the rest if you're interested in learning about what more smart Edition can offer you with your atits the link is down below in my description let's get started with the atit's practice question on science starting with question one the question is which blood group is a universal donor is it a B a b or o so in order to determine this we know that blood is determined by the presence and absence of specific proteins on the surface of the red blood cell and there's four main types of blood cells that we learned in anatomy and physiology we have a we have B we have a b and we have O So blood type O is considered the universal donor because it does not have either A or B proteins on the surface of its red blood cells this means that blood type O can be safely given to people with any other blood type without the risk of the recipient's immune system rejecting that transfusion however people with blood type O can only receive blood from other type O donors since their immune systems will recognize that presence of a and b proteins as foreign and they'll attack them on the other hand blood type A B is considered the universal receiver because it has both A and B proteins on the surface of the red blood cells this means that people with blood type A and B can receive blood from other blood types since their immune systems are able to recognize and tolerate both of those A and B proteins so for this specific question we know that the correct answer is going to be o and as you click on the answer and you check it it's going to give you rationales as to why certain answers are correct so it's very important as we move through these modules and these practice test questions that you recognize these rationales and you use them so that you better understand and further what my videos have taught you question two asks blood oxygen levels are most likely low when blood blinks is it one leaves the aorta two fills the right atrium three reaches body tissues or four flows through arteries so let's think about our cardiac cycle we know that in the aorta that's that last connection to our heart before it takes all of that oxygen-rich blood out to our body so we can automatically eliminate answer number one because that is not where low blood oxygen levels take place and we also know when it comes to our artery is Our arteries specifically in the body is what takes all of that oxygen rich blood out to our tissue so we can automatically eliminate that too so now we have reaches body tissues and fills the right atrium well once it's reaching the body tissues think about it nothing's actually taken place yet right that Oxygen's still within our red blood cell so by process of elimination the one that we can pick is going to be fills the right atrium and again the rationale that's behind this is that blown oxygen levels are most likely low when blood fills the right atrium because the right atrium receives blood that has already circulated through the body and has delivered the oxygen it needed to the tissues as the cells use oxygen for metabolism they release carbon dioxide into the bloodstream which is then transported back to the heart and the lungs to be eliminated that blood enters the right atrium and has already delivered oxygen to the cells picking up the carbon dioxide so obviously we would have a lower oxygen content question three an intracellular other chemical signal can be produced in the cell membrane once it is produced where does it go to a different cell to another part of the same cell to a region right outside the cell or to an area with a high ion concentration so like in medical terminology you were taught specific words and meanings to those words so when we break down the word intracellular right that's inside inside that cell so with this particular question it's asking were those intra cellular chemical signals are produced in the cell membrane if we know that it's happening inside the cell we can deduce that the answer is going to be to another part of the same cell and as you can see we're correct question four after food has been masticated in the oral cavity where does it go next is it a the colon B the liver C the pancreas or D the pharynx so thinking back to the days of anatomy and physiology we know that after food has been masticated or chewed in the oral cavity it is propelled down into the pharynx which is that muscular tube that connects the oral cavity and the esophagus that pharynx serves as a common pathway for both food and air and it contains several muscles that help coordinate swallowing so by process of elimination we know that the pharynx is directly connected to our oral cavity thus giving us the correct answer question five the diffusion of nutrients through the walls of the digestive system is critical to homeostasis in the body where does the majority of this diffusion take place in the digestive system so the diffusion of nutrients through the walls of that digestive system really is a critical part of the homeostasis of the body because it enables the uptake of those essential nutrients such as carbohydrates proteins and lipids which are required for energy production and tissue growth the majority of that diffusion takes place in the small intestine which is the longest part of the digestive system and is specialized for nutrient absorption the intersection of that small intestine is lined with millions of little finger-like projections called V line which increases surface area available for that nutrient diffusion we know that the stomach really just helps kind of churn and digest that food in smaller pieces for digestion esophagus not a whole lot's taking place there and when it comes to our oral cavity that's where that breakdown takes place that mechanical breakdown right by process of elimination we can say that the small intestine is where a majority of that diffusion takes place in the digestive system question six as soon as an Invader known as a blank enters the body the body begins to fight isn't an antibody a pathogen a trigger or vaccination so as we know as soon as a pathogen also known as an Invader enters the body the immune system begins to fight that immune system is composed of various components that work together to recognize and eliminate pathogens the Adaptive immune system which is activated in if that innate immune system is not able to eliminate the pathogen involves a production of antibodies by specialized cells called B cells antibodies are proteins that combine to specific pathogens they mark them and then they destroy them using immune cells in a vaccination as we know is the administration of a weakened or inactivated form of a pathogen to stimulate the immune system to produce antibodies and activate that adaptive immune system providing a more long-term protection against a pathogen so as we know our little Invader that we don't want in our body is also known as a pathogen question seven where is skeletal muscle found is it inside the heart attached to Bone lining the walls of the bladder or within our gastrointestinal tract using those key words that are going to be found within the question we're looking for a skeletal muscle we have a skeletal system it's one of our 11 systems that are found within our body right skeletal system is made up of Bones so by process of elimination and using the keywords that we have available to us we can deduce that skeletal muscle is found attached to bones we find these with tendons it's a type of muscle that's responsible for that involuntary movement walking running lifting weights and it helps maintain posture as well as stability toward joints question eight if a person smells something sweet what form of information is this initially perceived as in the nervous system is it cognitive integrative motor or sensory when it comes to the cognitive nervous system this is also known as that central nervous system this system is comprised of the brain and the spinal cord and is ultimately responsible for perception attention memory and Consciousness so we can get rid of this the integrative nervous system also known as the autonomic nervous system the ANS this system includes both sympathetic and parasympathetic nervous system and it's ultimately responsible for functions when it comes to the heart rate digestion and respiration so again we can eliminate that the motor nervous system is responsible for controlling voluntary and involuntary movements in the body that system is comprised of the somatic and the autonomic nervous system and it's ultimately responsible for functions such as walking talking and breathing so again we can eliminate that lastly we have the sensory nervous system and this is responsible for transmitting sensory information from the body's external and internal environments to our CNS this system includes sensory receptors that are located on our skin and our muscles and in our organs and is ultimately responsible for functions such as touch temperature and pain perception so in summary the sensory nervous system is what's going to make the most sense right we're using a sensory organ we are smelling something sweet and that is going to transmit that information to our central nervous systems question nine while hiking a person is startled after encountering a bear her Palms get sweaty and her heart starts racing which part of the nervous system was directly stimulated was it the central the parasympathetic the somatic or the sympathetic so we already briefly discussed Central in our previous question so now we have to figure out what is parasympathetic somatic and sympathetic the somatic nervous system is responsible for those voluntary movements and Sensations it branches off of the nervous system and controls like skeletal muscle and is responsible for the moving of our body so we can automatically eliminate that right so our sympathetic nervous system is responsible for the body's fight or flight response It prepares the body for an action in response to a perceived threat such as danger or stress the sympathetic system causes an increase in heart rate as we can see here respirations and blood pressure while also slowing down digestion and other non-essential functions right because if we are in a state of threat those other functions are not as important so we got to get all of that energy and all of those nutrients to the areas that need it the parasympathetic nervous system is responsible for the body's rest and digest when it comes to the parasympathetic it helps conserve energy and restores the body's normal functions after periods of stress and activity the parasympathetic system slows down the heart rate and respiration as well as the blood pressure while also increasing those things that were kind of put on the back burner right our digestion and other restorative processes so in this particular instance a perceived threat is happening right we are perceiving that this bear is going to come and attack us so as we know most likely our fight and flight is going to kick in and we are going to automatically stir up our sympathetic responses when it comes to this situation question 10 which of the following types of tissues include cells of the immune system and of the blood is it connected epithelial muscle or neural so connective tissues connect and support other tissues our epithelial tissues form on the surface of the body and lines are internal organs muscle tissues can tracked and generate Force for movement and neural tissues transmit electrical and chemical signals for communication and control but what's interesting about our connective tissue is it plays an important role in supporting the immune system by providing a physical framework in a transport system for immune cells and molecules the immune system is a complex network of cells tissues and organs as we know and within that system specifically our connective tissue we are found to be made up of cells called fibroblasts which produce an extracellular Matrix consisting of fibers and ground substances within that extracellular Matrix their specialized cells called dendritic cells and macrophages and these particular cells are part of the immune system these cells are able to capture and process antigens which are foreign substances such as bacteria and viruses that can trigger an immune response so by providing this physical framework for the immune system our connective tissue actually plays a major role when it comes to the immune system as well as our blood and there's additional information down here in the bottom that gives you more clarification in regards to what each specific type of tissues do so please make sure that you're reading those rationales because this is going to be extremely helpful in these questions that don't really give you any kind of answer Clues but you'll need to know for the test question 11 which best describes homeostasis is it a functional system of the body blood flow to every cell in the body a relatively constant environment within the body or neural Pathways that have integrated into the body so what is the definition of homeostasis homeostasis is the maintenance of a relatively stable internal environment in the body despite changes in those external conditions and it involves the coordination of various physiological process to maintain a balance of internal conditions such as temperature pH and nutrient levels so if functional system of the body yes absolutely it does help with the functioning of our body but it's not the best answer blood flow to every cell in the body that's not really the answer right that's more of what Our arteries do neural Pathways that's more related to the nervous system so when it comes to homeostasis the best answer that we can pick is that relatively constant environment of the body that is the correct answer for homeostasis question 12 fertilization the fusing of one sperm and an ovum results in a blank is it embryo fetus infant or zygote well as we know fetus and infant is things that happen much later right so we're not looking at those two specific answers so we're trying to determine whether it's an embryo or a zygote so if we think about human intercourse it consists of the male introducing a sperm to the female's reproductive system sperm may then pass through the female's reproductive system into our Fallopian tubes where once sperm fertilizes an ovum right that's also known as a zygote that zygote passes out of the fallopian tube and implants itself into the uterine wall to begin that gestation over nine months the zygote develops and grows into an embryo and then a fetus and if it is what happens after the baby's born right it takes a little bit of time to get to that infancy stage but again that's not part of the fertilization process so again by process of elimination we get zygote which is the correct answer question 13 which of the following are included in the male reproductive system is it the penis and epididymis the vas deferens and uterus the penis and Fallopian tubes or the penis scrotum and cervix let's think of the female reproductive system so answer to the vast difference in uterus men don't have uteruses right so we can automatically eliminate the second answer the third answer the penis and Fallopian tubes again Fallopian tubes are found in women and not in men so we can automatically eliminate number three and number four the penis scrotum and cervix again men don't have cervixes right only females have services so again we can automatically eliminate the fourth answer so by process of elimination the correct answer should be and it is the penis and epididymis we're about halfway through the test and I wanted to take this moment to give you more information about smart Edition Academy what are you going to get when you purchase their course you're going to get eight practice tests with unlimited retakes you can take it as many times as you possibly want you're gonna get practice question Banks organized by topics for more specific questions that's 1500 plus questions you're going to get 100 plus videos in color as well as 55 plus study guides and lessons for all sections of the test including the not so fun one that we all love to hate chemistry this is going to be a one-time purchase and your access to the course is never going to expire so you don't have to worry about monthly subscriptions and retake limits they don't exist and lastly I know many of you use your tablets and your phones when it comes to studying for this test and this course is specifically designed for those things it's going to pair well with your Bluetooth for on-the-go setting such as when you're listening to videos while you're driving to work if you're interested in finding out more information about the smart Edition course the link is down below in my description let's get back to the test question 14. what structure plays a role in air conduction is it a relis capillaries lungs or trachea the primary function the most important function of our respiratory system is to provide oxygen and remove carbon dioxide from the body in addition to gas exchange we also look at air conduction right that's the respiratory system's ability to help a person breathe so we have two big pieces we have air exchange and we have gas exchange so when it comes to air conduction that is air being delivered to the lungs this region usually includes the larynx the trachea the bronchi and the bronchioles and our gas exchange happens really deep inside our lungs right that's the lungs themselves the alveoli and the capillaries so when we're looking at our answers here we know that the alveoli the capillaries in the lungs help with the gas exchange piece right delivering that oxygen and taking that carbon dioxide but we get to get the oxygen in and we gotta get the carbon dioxide upside out and one of the key players to helping us do this is our trachea so the correct answer for this particular question is the trachea question 15. what body system is the skeletal system most closely associated with when hematopoiesis happens is it the urinary system the digestive system the muscular system or the cardiovascular system so the big key word here is hematopoiesis what does that mean remember we need to break down these words to understand what is happening so the prefix hemato is derived from the word blood so it's closely related to blood or blood cells poesis the suffix refers to the process of production or formation of a specific type of cell or tissue based on this word we have blood that needs to be formed or produced a specific type of cell or tissue so we have blood production this primarily happens within the bone marrow of our skeletal system but that's not what the question is asking it's asking which body system is closely related to the skeletal system when it comes to this process so out of all these systems that are listed which specific system relies on blood right our cardiovascular system so when it comes to the body the skeletal system and the cardiovascular system are closely related and work together when it comes to hematopoiesis question 16 what is the final structure through which urine must travel to empty out of the body is it the bladder the kidney the ureter or the urethra so in order to understand this we have to understand how the urinary system works so to begin with the kidneys filter and excrete waste from the blood and in turn produce urine urine is going to flow down our ureters right they're going to go down from our kidneys into our bladder that urine empties into the bladder and is temporarily still board until it needs to be excreted by the body once it's full enough it's going to empty that urine out through that external opening right that's our urethra so for trying to figure out what is the final structure that's involved with our urinary system when it comes to emptying out urine from our body we know that urethra is going to be the correct answer as you can see here from the image both female male we've got the same anatomical structures we have our kidneys we have our ureters it empties into our bladder and then finally the Final Destination before it exits our body is going to be through the urethra question 17 which sequence describes the hierarchy level of biological organization biological classification is a way scientists organize and group different things Sciences group living things together in different categories based on what they have in common the grouping is kind of like a set of nestling dolls each doll fits inside a bigger one the biggest all is the kingdom and there are six different kinds of Kingdoms So within our kingdoms we have the phylum the phylum is groups of organisms with similar characteristics so we could be looking at a group of fish a group of birds a group of mammals phylum is then further broken down into classes which are a group of organisms with similar characteristics So within those groups we could be looking at animals that have mammary glands or that have hair classes are then further divided in order when it comes to groups related to families so you might be looking at something very specific such as like meat eaters type of animals that could be our Lions our tigers and our wolves orders are then further broken down into families which are groups of related genres so if we're looking at typical types of cats we could be looking at domestic cats lions tigers they all fit within that cat family families are then divided into our genre and that's our group of related species so we know that big cats are lions are tires and our leopards are all within that same related species and then lastly species we've said it again and again that is our most specific level of classification it refers to a group of organisms that are capable of interbreeding and producing viable Offspring So based on everything that we discussed our correct answer would be a kingdom phylum class order family genus and species smart Edition does a great job of breaking it down for you so that you have visualization as why this answer is correct question 18 which example is part of the scientific method a student reads about new ways to harness energy from the Sun a researcher studies the effects of car exhausts on how people breathe a researcher analyzes how many plants respond well to a new fertilizer or a student discovers how insulin plays a role in the development of diabetes so let's talk about the a scientific method we have the problem research hypothesis experiment observation conclusion and communicate so to beginning with the problem the question that is created because of an observation so an example of this would be does the size of a plastic object affect how fast it naturally degrades in a lake when we research this we're looking for Reliable information available about what is observed so for example we have to learn how Plastics are made and understand the properties that are found within the lake then we form a hypothesis this is that prediction to that question or that problem so for example if the plastic material is small then it will degrade faster than a large particle that's what we think might happen next we're going to start conducting our experiments so that's a series of tests used to evaluate the hypothesis experiments can consist of an independent variable that the researcher modifies in a dependent variable that changes due to that independent variable we also have things such as control groups that are used as a standard process to make comparisons so for example what this researcher might do is they might collect plastic particles both onshore and offshore of the lake over time then they're going to determine the size of those particles and describe the lake conditions during that time period next we're going to observe right we're going to analyze data collected during an experiment to observe for patterns what that researcher might do is they might analyze the differences between the numbers of particles collected in terms of their size then we're going to start forming our conclusions we're going to State whether the hypothesis was rejected or accepted and summarize all of the results and then lastly we're going to communicate we're going to report on the findings that we found so that others can replicate and verify the results so based on the info information that we got understanding the scientific process we can know that a researcher is most likely going to analyze how plants respond well to a new fertilizer right that is how we break down our scientific method question 19. what standard is used to make comparisons in experiments is it the sample size control group dependent variable or independent variable so let's break each one of these answers down the sample size refers to the number of subjects or observations included in a study or experiment the larger the sample size generally results in more statistically accurate and reliable results a control group is a group of subjects that is not exposed to the experimental treatment or intervention the control group is used as a baseline comparison to measure the effects of the experimental treatments right this is our constant nothing changes our dependent variable is the variable that is measured or observed in an experiment it is the outcome or the response that is being studied and is affected by the independent variable and then lastly we have our independent variable our independent variable is a variable that is manipulated or changed in an experiment it is a variable that the researchers control and is used to test the effects of the independent variable so the question is asking what standard is used to make comparisons in experiments so in order for us to make a comparison we had to have something that's constant right something that never changes the control group is the one that makes the most sense right that's the one thing that doesn't change we can always compare our dependent variables and our independent variables to that control group question 20. why did it take many years for the cell theory to be developed advancements in microscopy took place slowly cells were difficult to isolate for experimental analysis researchers believed a cell form from pre-existing cells or scientists already proved that cells essential for life you're gonna get questions like this on the test and you're going to be like I have absolutely no idea what this is and that's okay you know you're not going to understand or know everything that's going to be on the test this specific question we know that Robert Hook was the person that first discovered cells and that was in the mid 18th century right that was a long time ago so cell theories that was created because it was supported by a significant number of experimental findings the cell theory took many years to develop because microscopes were not powerful enough back then for them to be observed correctly because it's been around forever you can say yes absolutely advancements in microscopy took place really really slowly question 21 one organelle is only associated with plant cells is it a cell wall ribosome cytoplasm or Golgi apparatus so the organelle that's only associated with plant cells is a cell wall that cell wall is a rigid layer that surrounds the cell membrane and provides Provide support and protection to the cell it's usually made up of cellulose as well as other polysaccharides and is ultimately responsible for maintaining the shape of the cell while both plant and animal cells have ribosomes cytoplasm and Golgi apparatus it's only the plant cell that actually has a cell wall question 22 which of the following is supported by cell theory cells are alive and recognized as the building blocks for life scientists can identify and differentiate cells by using a microscope cells are produced from existing scales using meiosis instead of mitosis and living things are composed of a single cell that remains undifferentiated so there's three main components when it comes to cell theory all living organisms are composed of one or more cells cells are the basic unit of life and the smallest unit that can perform all functions of life such as metabolism growth and reproduction and number three is all cells arise from pre-existing cells Within and cell division so cells are alive yes absolutely we know that and they are recognized that the building blocks of life absolutely scientists can identify and differentiate cells increases in the microscope absolutely we can 100 look at cells and differentiate them but that doesn't really support cell theory cells are produced from existing cells using meiosis instead of mitosis well again we know that both are just as important so that's not the correct answer and lastly living things are composed of a single cell that remains undifferentiated doesn't make a whole lot of sense right our cells are absolutely differentiated we look at them on a microscope and we we can see the difference so the best answer when it comes to this question is we know that cells are alive and they're recognizes the building blocks of life question 23 what raw inorganic material would an autotroph most likely use to create chemical energy for growth is it carbon dioxide minerals and soil decaying matter or sugar molecules so in order to answer this we have to understand why other jobs are autotrophs are organisms that can produce their own food from simple inorganic substances such as carbon dioxide water and minerals using an external energy source such as sunlight through a process called photosynthesis autotrophs are also called producers because they produce organic compounds that serve as a source of energy and nutrients for other organisms within the ecosystem so plants are one of the most common types of autotrophs that obtain mineral nutrients for their growth specifically from the soil the roots of the plants absorb water and mineral ions from the soil through those root hairs right the mineral ions known as nitrogen phosphorus and potassium are essential for plant growth and are incorporated into organic molecules in the plant through that metabolic process that they have So based on this let's think about this rationally so we're looking for chemical energy for growth so we have carbon dioxide well as we know carbon dioxide is a byproduct that is found within our body that we exhale out so there's not a whole lot of chemical growth that's taking place there right decaying matter it's dying it's Decay matter we're not getting a whole lot of chemical growth from that and then sugar molecules well yes absolutely sugar is one molecule that might be able to help with chemical energy but it's not going to really help autotrophs so at the end of the day minerals are going to be the best thing when it comes to creating energy for growth when it comes to autotrophs specifically plants so the correct answer to this question is going to be minerals in the soil question 24 when would a cell most likely contain the most nucleotides is it during the S phase G1 phase M phase or G2 phase so in order to understand this we have to figure out what these phases mean right so the G1 phases our Gap one phase the S phase is our synthesis phase the G2 phases are Gap two phase and lastly our M phases are mitosis phase so during the beginning during that G1 phase that's when cells grow and prepare for DNA replication in the S phase following that DNA replication occurs resulting in those two identical copies of genetic material during the G2 phase the cell continues to grow and prepare for cell division and then finally during that M phase that mitosis phase that's when that replicated chromosome is divided in two identical sets of chromosomes and the cell undergoes division to form those two daughter cells So based on what this question is asking when would a cell most likely contain the most nucleotides it's easy to deduce it that would be during the G1 phase because that's when cells grow the most and prepare for that DNA replication question 25 what is the correct order of the stages of the cell cycle we literally just talked about this and our previous question we know that G1 happens first then our S phase then our G2 phase then our M phase so I'm going to go ahead and select that answer and what's great about smart Edition Academy is they have it broken down here for you so you can visually see it so right here we have G1 that's our growth phase and it kind of goes clockwise just like this during the second part we have our DNA replication right and then we move into that preparation for division that's our G2 so all of these preparation for the actual division is our interphase right that's our first step of our cell division process and then we move on to our M phase that's the one that we're most knowledgeable with when it comes to cell division and that's our mycotic phase that's when we have our prophase metaphase anaphase so on and so forth so really really make sure that you're looking at these rationales as to why certain answers are correct over others because just like this it's going to help you answer multiple questions so once you reach the end of the atit7 practice test specifically for science what smart Edition Academy does really well is they give you the ability to see specifically what areas of opportunity you need to work on so for example if you were to miss certain questions throughout the series that we took it's going to let you know maybe you know designing an experiment wasn't really strong for you or chemical Solutions chemical bonds so on and so forth so instead of having to study everything that you need to know for the atits if you're strong in a certain area I wouldn't necessarily not spend a lot of time in those areas maybe look at the areas that you have learning opportunities to do better on the next test what smart Edition does is they give you modules they help work you through the different information that it is that you need to know and then at the end they have additional tests they have approximately eight tests total test it's not specifically science but it's just the tests in general that you're able to answer these specific questions again and build on the rationales as well as the rationales you learned in the practice test as you move forward in trying to prepare for your atits if you are interested in building upon your foundations and having as many practice questions as you can possibly have before taking your atits test I highly recommend smart Edition Academy there is an abundance of resources available to you as a learner to help you be successful on your atits they have an online course and they have a practice test pack which is jammed full of resources and practice tests to help you become successful on your test I have a link Down Below in my description if it is something that you're interested in I highly recommend that you check it out as always make sure you follow me on my social media I'm on Facebook and Instagram and I will check you out in the next video bye

Channel: Nurse Cheung

Views: 89,750

Keywords: ati teas, teas practice test, ati teas review, teas 7 science, ati teas science review, smart edition academy, ati teas 7, teas 7, teas 7 science review, ati teas 7 science, ati teas 7 science review, ati teas science review 2022, ati teas science review questions, ati teas science review nurse cheung, ati teas science 2022, teas test prep 2023, teas test prep 2022, teas exam for nursing, tutor geek, teas 7 science practice test, teas science review, ati teas 7 study guide

Id: PkRm3qJuwcI

Length: 35min 59sec (2159 seconds)

Published: Mon Mar 20 2023