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HESI A2 Entrance Exam 2025
Full Exam
MATH, BIO, READING, GRAMMAR, VOCAB, A&P
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HESI A2 Exam
Biology Section 2025
Actual Exam Questions
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1. Which organelle is responsible for protein synthesis?
Answer: Ribosome
2. Why is yeast used to make bread rise?
Answer: Yeast carries out fermentation, producing ethanol and carbon dioxide.
3. How is mitosis different from meiosis?
Answer: Meiosis creates sex cells with half the number of chromosomes of the parent cell,
whereas mitosis creates cells that are exact copies of each other, down to the number of
chromosomes.
4. What can be altered?
Answer: DNA
5. What is single stranded?
Answer: RNA
6. What contains uracil?
Answer: RNA
7. What codes for proteins?
Answer: DNA
8. 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?
Answer: 50 percent
9. We have an expert-written solution to this problem! A cell is in a solution in which the
concentration of solutes is higher inside the cell than outside the cell. What would you
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expect to happen to the cell?
Answer: It will swell and probably burst/hypotonic situation.
10. What is the purpose of phloem tissue in plant stems?
Answer: It conducts food throughout the plant; it is the system of narrow tubes that transports
sugars and other nutrients.
11. Physical factors such as temperature and pH can alter enzyme activity because they
have an effect on the enzyme's
Answer: Shape, the shape of an enzyme controls its fit with its substrate.
12. Which part of a plant's reproductive system is of a different gender than others?
Answer: Stamen (male reproductive organ)
13. What kind of symbiosis exists between a pneumonia bacterium and a human?
Answer: Parasitism, one organism benefits off another
14. The scientific name for a house cat is Felis catus. This indicates the house cats what?
Answer
Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
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HESI A2 Entrance Exam 2025
Full Exam
MATH, BIO, READING, GRAMMAR, VOCAB, A&P
FB group: https://www.facebook.com/groups/1194849081529411/
,For more files: Tutor3570 @gmail .com
HESI A2 Exam
Biology Section 2025
Actual Exam Questions
FB group: https://www.facebook.com/groups/1194849081529411/
,For more files: Tutor3570 @gmail .com
1. Which organelle is responsible for protein synthesis?
Answer: Ribosome
2. Why is yeast used to make bread rise?
Answer: Yeast carries out fermentation, producing ethanol and carbon dioxide.
3. How is mitosis different from meiosis?
Answer: Meiosis creates sex cells with half the number of chromosomes of the parent cell,
whereas mitosis creates cells that are exact copies of each other, down to the number of
chromosomes.
4. What can be altered?
Answer: DNA
5. What is single stranded?
Answer: RNA
6. What contains uracil?
Answer: RNA
7. What codes for proteins?
Answer: DNA
8. 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?
Answer: 50 percent
9. We have an expert-written solution to this problem! A cell is in a solution in which the
concentration of solutes is higher inside the cell than outside the cell. What would you
FB group: https://www.facebook.com/groups/1194849081529411/
, For more files: Tutor3570 @gmail .com
expect to happen to the cell?
Answer: It will swell and probably burst/hypotonic situation.
10. What is the purpose of phloem tissue in plant stems?
Answer: It conducts food throughout the plant; it is the system of narrow tubes that transports
sugars and other nutrients.
11. Physical factors such as temperature and pH can alter enzyme activity because they
have an effect on the enzyme's
Answer: Shape, the shape of an enzyme controls its fit with its substrate.
12. Which part of a plant's reproductive system is of a different gender than others?
Answer: Stamen (male reproductive organ)
13. What kind of symbiosis exists between a pneumonia bacterium and a human?
Answer: Parasitism, one organism benefits off another
14. The scientific name for a house cat is Felis catus. This indicates the house cats what?
Answer
Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
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