HESI NURSING ENTRANCE EXAM-
BIOLOGY EXAM QUESTIONS &
DETAILED CORRECT ANSWERS
Why is polarity the most important characteristic of water? - CORRECT ANSWER The results of
polarity are hydrogen bonding, a high specific heat value, and its versatile solvent properties
Athletes are often concerned of what they need in their diets to increase muscle mass and
strength. What biologic molecule would you recommend that would accomplish this? -
CORRECT ANSWER Proteins
Which organelle would you expect to be present in a cell responsible for detoxifying multiple
molecules? - CORRECT ANSWER Smooth endoplasmic reticulum
A cell from heart muscle would more than likely contain an unusually high proportion of? -
CORRECT ANSWER Mitochondria
Which part of cellular respiration produces the greatest amount of ATP? - CORRECT ANSWER
Electron transport chain
When plants do not receive enough water their photosynthetic rated drops. This is because: -
CORRECT ANSWER Water is a raw mineral for the light reactions in photosynthesis
Which of the following statements is true about Krebs cycle and the Calvin cycle? - CORRECT
ANSWER Both result in a net production of ATP and NADH
Why is it important for cells to undergo mitosis? - CORRECT ANSWER Mitosis produces cells for
growth and repair of body tissue
, 72 chromosomes undergo meiosis. How many chromosomes will be in each gamete? -
CORRECT ANSWER 36
Which of the following shows how information is transformed to make a protein? - CORRECT
ANSWER DNA-RNA-Protein
Alleles - CORRECT ANSWER alternate version of a gene
Amino Acids - CORRECT ANSWER organic compounds that contain at least one amino group
and a carboxyl group
Binary Fission - CORRECT ANSWER type of assexual reproduction
Chromosomes - CORRECT ANSWER compact rod shaped body located in the nucleous of a cell.
Contains DNA
Codon - CORRECT ANSWER 3 base sequence of messenger RNA
Cytokinesis - CORRECT ANSWER ...
Deoxyribonucleic acid (DNA) - CORRECT ANSWER a unique molecule specific to a particular
organism- it contains a genetic code that is necessary for replication.
Electron transport chain - CORRECT ANSWER series of steps in cellular respiration that produces
water ATP
Glycolysis - CORRECT ANSWER anerobic break down of glucose. First stage in cell respiration.
BIOLOGY EXAM QUESTIONS &
DETAILED CORRECT ANSWERS
Why is polarity the most important characteristic of water? - CORRECT ANSWER The results of
polarity are hydrogen bonding, a high specific heat value, and its versatile solvent properties
Athletes are often concerned of what they need in their diets to increase muscle mass and
strength. What biologic molecule would you recommend that would accomplish this? -
CORRECT ANSWER Proteins
Which organelle would you expect to be present in a cell responsible for detoxifying multiple
molecules? - CORRECT ANSWER Smooth endoplasmic reticulum
A cell from heart muscle would more than likely contain an unusually high proportion of? -
CORRECT ANSWER Mitochondria
Which part of cellular respiration produces the greatest amount of ATP? - CORRECT ANSWER
Electron transport chain
When plants do not receive enough water their photosynthetic rated drops. This is because: -
CORRECT ANSWER Water is a raw mineral for the light reactions in photosynthesis
Which of the following statements is true about Krebs cycle and the Calvin cycle? - CORRECT
ANSWER Both result in a net production of ATP and NADH
Why is it important for cells to undergo mitosis? - CORRECT ANSWER Mitosis produces cells for
growth and repair of body tissue
, 72 chromosomes undergo meiosis. How many chromosomes will be in each gamete? -
CORRECT ANSWER 36
Which of the following shows how information is transformed to make a protein? - CORRECT
ANSWER DNA-RNA-Protein
Alleles - CORRECT ANSWER alternate version of a gene
Amino Acids - CORRECT ANSWER organic compounds that contain at least one amino group
and a carboxyl group
Binary Fission - CORRECT ANSWER type of assexual reproduction
Chromosomes - CORRECT ANSWER compact rod shaped body located in the nucleous of a cell.
Contains DNA
Codon - CORRECT ANSWER 3 base sequence of messenger RNA
Cytokinesis - CORRECT ANSWER ...
Deoxyribonucleic acid (DNA) - CORRECT ANSWER a unique molecule specific to a particular
organism- it contains a genetic code that is necessary for replication.
Electron transport chain - CORRECT ANSWER series of steps in cellular respiration that produces
water ATP
Glycolysis - CORRECT ANSWER anerobic break down of glucose. First stage in cell respiration.
