HESI A2 Biology Practice Test (20 Questions with Explained Answers)

welcome to the 2023 hesi A2 biology practice test this test will have 20 questions with explained answers that will help you prepare for the test be sure to resuscitate the like button by turning it white question one what is the largest organ of the human body a heart B lungs C liver D skin the correct answer is D skin of the 79 known organs in the body the skin is known to be the largest skin protects the body from environmental stressors such as germs pollution and radiation from the Sun besides regulating your body temperature it receives sensory information and stores fat water and vitamin D question two which phenomenon states that living organisms are created from non-living matter a abiogenesis b chemistry C biology D photosynthesis the correct answer is a abiogenesis abiogenesis is the theory that life arose from non-life on Earth more than 3.5 billion years ago based on the theory of abiogenesis the first life forms created were very simple and became increasingly complex over time question three somatic cells undergo which process to produce more cells a meiosis B mitosis C halitosis D abiogenesis the correct answer is B mitosis somatic cells include all cells in the body other than sperm cells and egg cells gametes these somatic cells must undergo mitosis in order to multiply question four during photosynthesis the Calvin cycle uses ATP to produce which of the following a fats B sugar C carbohydrates D protein the correct answer is B sugar The Calvin Cycle takes place during photosynthesis instead of making ATP it uses ATP to make sugars question five where does protein synthesis take place in a eukaryotic cell a ribosome B nucleus C lysosome D reticulum the correct answer is a ribosome protein synthesis occurs at ribosomes in a Cell the number of ribosomes in a Cell depends on how active it is at synthesizing proteins ribosomes are usually more prominent in rapidly growing cells question six during cellular respiration where does ATP synthesis take place a mitochondrion B ribosome C nucleus D endoplasma the correct answer is a mitochondrion about 32 ATP molecules are produced for every oxidized glucose molecule during cellular respiration this takes place mostly in the mitochondrial Matrix question seven which of the following is responsible for modifying and packaging materials for transport within the cell or for secretion from the cell a Golgi apparatus B mitochondria C DNA D ribosome the correct answer is a Golgi apparatus in order to get proteins and lipids to specific locations the Golgi apparatus must move alter and package them into vesicles numerous chemical changes may take place as the secretory proteins pass through the Golgi apparatus question eight which of the following binds to guanine in dna-based pairs a adenine B uracil see by mine d t terosine the correct answer is a adenine adenine binds to guanine for base pairs of DNA question 9 which of the following catalyzes chemical reaction a proteins B fats C carbohydrates D enzymes the correct answer is D enzymes by lowering the activation energy and consequently raising the rate of reaction enzymes and other Catalyst work since both directions must travel through the same transition state The increased rate is the same in both the forward and reverse directions question 10 what is the smallest type of biological molecules a monomer B amino acids C nucleic acids D nucleotides the correct answer is a monomer a monomer is a common name for a single component or bead our cells are made up of strings of monomers which are the building blocks of all biomolecules for instance nucleic acids or strings of nucleotides and proteins are composed of strings of amino acids question 11. which of the following describes a process by which a cell uses a cell membrane to engulf a particle a mitosis B glycolysis C nucleosis D phagocytosis the correct answer is D phagocytosis phagocytosis occurs when a cell utilizes the cell membrane to engulf a particle cells performing this function are known as phagocytes question 12 which organ in the body stores red blood cells in the event that the body needs those cells a liver B kidneys see heart D spleen the correct answer is D spleen in the event of an emergency extra red blood cells are primarily stored in the spleen at any given time the spleen stores up to 30 percent of the body's red blood cells the destruction of worn out or damaged red blood cells is another function of the spleen upper left abdominal quadrant is where the spleen is situated question 13. white blood cells include all of the following except a monocytes B leukocytes c basophils d thrombocytes the correct answer is d thrombocytes our blood contains platelets also known as thrombocytes which are tiny colorless cell fragments that help to stop or slow bleeding our bone marrow the sponge-like tissue found inside our bones is where platelets are created question 14 what is the term for the growth plates located in the body a epiphyseal plate B metaphysis plates C metamorphosis D cartilage the correct answer is a epiphyseal plates long bones grow in the growth plate sometimes referred to as the epiphyseal plate which is a thin cartilage layer located between the epiphysis and the metaphysis the primary location for the long bones is longitudinal growth is the epiphyseal growth plate at this location cells proliferate in large and produce the characteristic extracellular Matrix resulting in the formation of cartilage following formation the cartilage is destroyed hardened and replaced by osseous tissue question 15 the anaphase and cell division follows which phase a exophase b metaphase C tyrophase D telophase the correct answer is B metaphase anaphase follows metaphase when the sister chromatids of each chromosome separate and travel to the opposing poles of the cell the separation is brought on by the enzymatic degradation of cohesion which is during prophase join the sister chromatids together question 16 what is the name of the appendages that receive communication from other cells a neuron B axon C dendrite D transistor the correct answer is C dendrite appendages called dendrites are made to receive signals from neighboring cells they take the form of projections with a tree-like structure that are triggered by other neurons and carry the electrochemical charge to the cell body or more rarely directly to the axons question 17. what cells are support cells to neurons that help maintain the chemical makeup of the cell as well as maintaining their environment a glial cells B dendrite cells C neuro cells D transistor cells the correct answer is a glial cells with five to ten glial cells per neuron or 350 billion cells per brain neuroglia cells are the most common cell family in the central nervous system glial cells continue to divide support neurons metabolic and structural needs and uphold the environment necessary for their proper operation question 18 which of the following is a single cell or cytoplasmic mass containing several nuclei formed by Fusion of cells or by division of nuclei a syncsidium b myocardium C endocardium D takatiam the correct answer is a syncsidium a single cell or cytoplasmic mass created by the fusion of two or more cells or by the division of a single nucleus the development of skeletal muscle is a well-known instance of a syncsidium numerous little muscle cells join together to generate large skeletal muscle fibers question 18. which of the following structures plays a part in removal of bacteria and detritus from the Airways a microvilli b cilia C pseudopodia D villi the correct answer is B cilia cilia which resemble hair-like projections border the bronchi and the lungs and transport bacteria and detritus up and out of the Airways question 20 what is the result of two haploid gametes fusing a zygote B ovum C endometrium D embryo the correct answer is a zygote the characteristic of fertilization is singami the joining of two haploid nuclei to create a diploid nucleus the zygote is the cell that results from the union of the egg and sperm thank you for watching this video we hope you enjoyed it check out these other videos that can help you with your future studies don't forget to resuscitate the like button and subscribe to our Channel and please share this video with your fellow nursing friends

Channel: All Healthcare Careers

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Keywords: hesi a2 biology, hesi a2 biology 2023, hesi biology, hesi biology 2023, hesi biology practice test questions, hesi biology exam, hesi biology practice test

Id: jFt7AecPy54

Length: 12min 4sec (724 seconds)

Published: Mon Feb 13 2023