HESI A2 Biology Exam- Prep| 200 Questions with Verified Answers | 100% Correct| Latest 2025/2026 Update.

HESI A2 Biology Exam- Prep| 200 Questions
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with Verified Answers | 100% Correct| Latest
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2025/2026 Update. i,-




The sex of a human child is determined by the sex chromosome
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from? The father
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Cell division occurs most rapidly in?
i,- i,- i,- i,- i,- i,-i,- i,- Cancerous tissue i,-




Which blood type would be a universal donor?
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- O-


Passage of water through the membrane of a cell is called ?
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Osmosis


Which term includes all others?
i,- i,- i,- i,- i,-i,- i,- Organism


The Krebs cycle produces?
i,- i,- i,- i,-i,- i,- CO2 and H2 i,- i,-




The presence of which substance is most important for all cell
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-



activity Water i,-i,- i,-

,The basic structure of a cell membrane is a ?
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Protein-
impregnated phospholipid bilayer i,- i,-




Cytoplasmic structures that contain powerful hydrolysis enzymes,
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which could lead to cell destruction in the absence of
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surrounding membranes, are? Lysosomes
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Organic substances made up of several amino acids bound
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together are? Proteins
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The smallest known microorganisms are?
i,- i,- i,- i,- i,-i,- i,- Viruses


The end product of protein metabolism is ?
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Amino acids i,-




Carbohydrates are absorbed into the blood as ? i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Glucose


The substance basic to life is?
i,- i,- i,- i,- i,- i,-i,- i,- Proteins


The body obtains most of its nitrogen from?
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Proteins


The basic unit of living organisms is ?
i,- i,- i,- i,- i,- i,- i,- i,-i,- i,- Cell

, The diffusion of water through a semipermeable membrane is
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known as? Osmosis i,- i,-i,- i,-




The process in which carbon dioxide and water are combined
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under the influence of light in green plants is called?
i,- i,- i,- i,- i,- i,- i,- i,- i,- i,-i,- i,-



Photosynthesis


A protein substance that initiates and accelerates a chemical
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reaction is called? Enzyme i,- i,- i,-i,- i,-




Which organelle is responsible for protein synthesis?
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Ribosome


Why is yeast used to make bread rise?
i,- i,- Yeast carries out i,- i,- i,- i,- i,- i,-i,- i,- i,- i,- i,-



fermentation, producing ethanol and carbon dioxide i,- i,- i,- i,- i,-




How is mitosis different from meiosis?
i,- i,- Meiosis creates sex i,- i,- i,- i,-i,- i,- i,- i,- i,-



cells with half the # of chromosomes of the parent cell where as
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mitosis creates cells that are exact copies of each other, down to
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the number of chromosomes
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What can be altered? i,- i,- i,- i,-i,- i,- DNA