HESI A2 Biology Practice Test 2024 (20 Questions with Explained Answers)

welcome to the 2024 hessie biology practice test this test will have 40 questions with explained answers that will help you prepare for the test be sure to resuscitate the light button by turning it white question one 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 re re action enzymes and other catalysts 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 two what is the term for the growth plates located in the body a epiphysial plates B metaphysis plates C metamorphosis D cartilage the correct answer is a a epiphysial plates long bones grow in the growth plate sometimes referred to as the epiphysial plate which is a thin cartilage layer located between the epiphysis and metaphysis the primary location for the long bonees longitudinal growth is the epiphysial growth plate at this location cells proliferate enlarge and produce the characteristic extracellular Matrix resulting in the formation of cartilage following formation the cartilage is destroyed hardened and replaced by ous tissue question three 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 at ATP it uses ATP to make sugars question four which organ in the body stores red blood cells in the event that the body needs those cells a liver B kidneys C 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% 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 five 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 likee structure that are triggered by other neurons and carry the electrochemical charge to the cell body or more rarely directly to the axons question six 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 seven white blood cells include all of the following except a monocytes B lucco sites 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 eight which of the following structures plays a part in removal of bacteria and detrius from the air ways a microvilli b cyia c pseudopodia d villy the correct answer is B cyia cyia which resemble hairlike projections border the Brony in the lungs and transport bacteria and detritus up and out of the Airways question n the anaphase in cell division follows which phase a exophase b metaphase C tyras 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 this separation is brought on by the enzymatic degradation of cohesin which during prophase join the sister chromatids together question 10 during cellular respiration where does ATP synthesis take place a mitochondrian B ribosome C nucleus D endoplasmatic question 11 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 gites these somatic cells must undergo mitosis in order to multiply question 12 which of the following is responsible for modifying and packaging materials for transport within the cell or for secretion from the cell a Gogi apparatus B mitochondria C DNA d ribosome the correct answer is a Gogi apparatus in order to get proteins and lipids to specific locations the Gogi apparatus must move alter and package them into vesicles numerous chemical changes may take place as the secretory proteins pass through the Gogi apparatus question 13 where does protein synthesis take place in a eukariotic Cell a ribosome B nucleus C lome 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 14 what is the result of two haid gametes fusing a zygote b ovam c endometrium d embryo the correct answer is a zygote the characteristic of fertilization is singam the joining of two haid nuclei to create a diploid nucleus the zygote is the cell that results from the union of the egg and sperm question 15 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 16 which of the following describes a process by which a cell uses the 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 17 which of the following binds to guanine in DNA base pairs a adenine B uracil C thymine D tyrosine the correct answer is a adenine adenine binds to guini for base pairs of DNA question 18 what cells or support cells to neurons that help maintain the chemical makeup of the cell as well as maintaining their environment a gal cells B dendrite cells C neuro cells D transistor cells the correct answer is a gal cells with 5 to 10 gal cells per neuron or 350 billion cells per brain neurog Gia cells are the most common cell family in the central nervous system gal cells continue to divide support neurons metabolic and structural needs and uphold the environment necessary for their proper operation question 19 what is the smallest type of biological molecules a monomer B amino acids C nucleic acids d D nucleotides the correct answer is a monomer a monomer is the 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 are strings of nucleotides and proteins are composed of strings of amino acids question 20 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 a syncitium b myocardium C endocardium D teum the correct answer is a syntium 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 cnidium numerous little muscle cells join together to generate large skeletal muscle fibers thank you for watching this video and we hope it was helpful click right here for more hessie practice test videos or take your free hessie practice 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Length: 11min 8sec (668 seconds)

Published: Tue Jan 16 2024