©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
Hesi A2 Biology Practice Exam
Questions with 100% Correct Answers
Which organelle is responsible for protein synthesis? - ✔✔Ribosome
Why is yeast used to make bread rise? - ✔✔Yeast carries out
fermentation, producing ethanol and carbon dioxide
How is mitosis different from meiosis? - ✔✔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
What can be altered? - ✔✔DNA
What is single stranded? - ✔✔RNA
What contains uracil? - ✔✔RNA
What codes for proteins? - ✔✔DNA
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? - ✔✔50 percent
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
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?
- ✔✔It will swell and probably burst/hypotonic situation
What is the purpose of phloem tissue in plant stems? - ✔✔It conducts
food throughout the plant, it is the system of narrow tubes that transports
sugars and other nutrients
Physical factors such as temperature and pH can alter enzyme activity
because they have an effect on the enzyme's - ✔✔Shape, the shape of
an enzyme controls it's fit with its substrate.
Which part of a plants reproductive system is of a different gender than
others? - ✔✔Stamen (male reproductive organ)
What kind of symbiosis exists between a pneumonia bacterium and a
human? - ✔✔Parasitism, one organism benefits off another
The scientific name for a house cat is Felis catus. This indicates the house
cats what? - ✔✔Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Hesi A2 Biology Practice Exam
Questions with 100% Correct Answers
Which organelle is responsible for protein synthesis? - ✔✔Ribosome
Why is yeast used to make bread rise? - ✔✔Yeast carries out
fermentation, producing ethanol and carbon dioxide
How is mitosis different from meiosis? - ✔✔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
What can be altered? - ✔✔DNA
What is single stranded? - ✔✔RNA
What contains uracil? - ✔✔RNA
What codes for proteins? - ✔✔DNA
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? - ✔✔50 percent
, ©JOSHCLAY 2024/2025. YEAR PUBLISHED, 2024.
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?
- ✔✔It will swell and probably burst/hypotonic situation
What is the purpose of phloem tissue in plant stems? - ✔✔It conducts
food throughout the plant, it is the system of narrow tubes that transports
sugars and other nutrients
Physical factors such as temperature and pH can alter enzyme activity
because they have an effect on the enzyme's - ✔✔Shape, the shape of
an enzyme controls it's fit with its substrate.
Which part of a plants reproductive system is of a different gender than
others? - ✔✔Stamen (male reproductive organ)
What kind of symbiosis exists between a pneumonia bacterium and a
human? - ✔✔Parasitism, one organism benefits off another
The scientific name for a house cat is Felis catus. This indicates the house
cats what? - ✔✔Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
