Revision Examination Tests
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Hesi A2 Biology Practice Questions
TEST 2024-2025 ACTUAL EXAM COMPLETE 200-
QUESTIONS AND CORRECT DETAILED ANSWERS
Quiz Which organelle is responsible for protein synthesis?
Ans: Ribosome
Quiz Why is yeast used to make bread rise?
Ans: Yeast carries out fermentation, producing ethanol and carbon dioxide
Quiz How is mitosis different from meiosis?
Ans: Meiosis creates sex cells with half the # of chromosomes of the parent cell
where as mitosis creates cells that are exact copies of each other, down to the
number of chromosomes
Quiz What can be altered?
Ans: DNA
Quiz What is single stranded?
Ans: RNA
Quiz What contains uracil?
Ans: RNA
Quiz What codes for proteins?
Ans: DNA
, Quiz Imagine that two parents both carry the recessive gene for cystic fibrosis. Any
homozygous recessive offspring will manifest the disease. What percentage of the
offspring is predicted to be carriers but not manifest the disease?
Ans: 50 percent
Quiz A cell is in a solution in which the concentration of solutes is higher inside the
cell than outside the cell. What would you expect to happen to the cell?
Ans: It will swell and probably burst/hypotonic situation
Quiz What is the purpose of phloem tissue in plant stems?
Ans: It conducts food throughout the plant, it is the system of narrow tubes that
transports sugars and other nutrients
Quiz Physical factors such as temperature and pH can alter enzyme activity because
they have an effect on the enzyme's
Ans: Shape, the shape of an enzyme controls it's fit with its substrate.
Quiz Which part of a plants reproductive system is of a different gender than others?
Ans: Stamen (male reproductive organ)
Quiz What kind of symbiosis exists between a pneumonia bacterium and a human?
Ans: Parasitism, one organism benefits off another
Quiz The scientific name for a house cat is Felis catus. This indicates the house cats
what?
Ans: Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
Quiz Beeswax is an example of what kind of molecule?
Ans: Lipid, waxes oils and fats are lipids
Quiz What takes place in a lysosome?
Ans: Food is digested, the lysosome contains digestive enzymes. The job of a
lysosome is to digest food for cells and break down cells waste products