HESI A2 Biology Exam | Actual Questions with Verified Answers | 100% Correct| Latest 2024/2025.

HESI A2 Biology Exam | Actual i,- i,- i,- i,- i,- i,-




Questions with Verified Answers | i,- i,- i,- i,- i,-




100% Correct| Latest 2024/2025. i,- i,- i,-




Which of the following structures is embedded in the cell
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membrane to facilitate the movement of molecules across the
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membrane?


a) proteins
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b) ATP
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c) glucose
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d) lipids
i,- a) proteins: embedded in the cell membrane are
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integral to many cell functions, including active transport and
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some types of passive transport
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A student places a cell with 50 mM intracellular ion content into a
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solution containing a 20 mM ion content. which of the following
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will happen in this system?
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a) water will move out of the cell, decreasing the size of the cell
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b) water will move into the cell, increasing the size of the cell
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,c) ions will move into the cell
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d) there will be no movement of water or ions across the cell
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membrane b) water will move into the cell, increasing the
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size of the cell: the concentration of ions is higher inside the cell
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than outside, so water will move into the cell from the
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environment, increasing the size of the cell i,- i,- i,- i,- i,- i,-




Which of the following substances cannot travel across a cell
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membrane without the use of energy? i,- i,- i,- i,- i,-




a) water
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b) potassium
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c) sodium
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d) glucose
i,- d) glucose: a glucose molecule is too large to pass
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through the cell membrane without the help of specialized
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proteins


All of the following molecules are used in the Calvin Cycle EXCEPT
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a) O2
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b) CO2
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c) ATP
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, d) NADPH
i,- a) O2: is released during the light-dependent
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stage of photosynthesis and is not used during the Calvin Cycle.
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the other choices are used during the Calvin Cycle to produce
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glucose


Which of the following stages of cellular respiration produces the
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largest number of ATP molecules? i,- i,- i,- i,-




a) glycolysis
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b) fermentation
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c) Krebs cycle
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d) electron transport chain
i,- d) ETC: produces 30-32 molecules i,- i,- i,-i,- i,- i,- i,- i,- i,- i,-



of of ATP made during cellular respiration. the other choices each
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produce only two molecules of ATP i,- i,- i,- i,- i,-




A scientist takes DNA samples from a cell culture at two different
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times, each same having the same cell count. in the first sample,
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he finds that there is a 6.5 pg of DNA whereas in the second
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sample, he finds that there is a 13 pg of DNA. which state of the
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cell cycle is the first sample in?
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a) interphase G1
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b) interphase S
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