Hesi A2 Biology Practice Questions
and answers 2025 update a+ pass.
Qs
Which organelle is responsible for protein synthesis? - n
Ans✔
Ribosome
Qs
Why is yeast used to make bread rise? - n
Ans✔
Yeast carries out fermentation, producing ethanol and carbon dioxide
Qs
How is mitosis different from meiosis? - n
Ans✔
Meiosis creates sex cells with half the # of chromosomes of the parent cell whereas
mitosis creates cells that are exact copies of each other, down to the number of
chromosomes
Qs
What can be altered? - n
Ans✔
DNA
Qs
What is single stranded? - n
Ans✔
RNA
,Qs
What contains uracil? - n
Ans✔
RNA
Qs
What codes for proteins? - n
Ans✔
DNA
Qs
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? - n
Ans✔
50 percent
Qs
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? - n
Ans✔
It will swell and probably burst/hypotonic situation
Qs
What is the purpose of phloem tissue in plant stems? - n
Ans✔
It conducts food throughout the plant, it is the system of narrow tubes that
transports sugars and other nutrients
Qs
, Physical factors such as temperature and pH can alter enzyme activity because
they have an effect on the enzyme's - n
Ans✔
Shape, the shape of an enzyme controls it's fit with its substrate.
Qs
Which part of a plants reproductive system is of a different gender than others? - n
Ans✔
Stamen (male reproductive organ)
Qs
What kind of symbiosis exists between a pneumonia bacterium and a human? - n
Ans✔
Parasitism, one organism benefits off another
Qs
The scientific name for a house cat is Felis catus. This indicates the house cats
what? - n
Ans✔
Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
Qs
Beeswax is an example of what kind of molecule? - n
and answers 2025 update a+ pass.
Qs
Which organelle is responsible for protein synthesis? - n
Ans✔
Ribosome
Qs
Why is yeast used to make bread rise? - n
Ans✔
Yeast carries out fermentation, producing ethanol and carbon dioxide
Qs
How is mitosis different from meiosis? - n
Ans✔
Meiosis creates sex cells with half the # of chromosomes of the parent cell whereas
mitosis creates cells that are exact copies of each other, down to the number of
chromosomes
Qs
What can be altered? - n
Ans✔
DNA
Qs
What is single stranded? - n
Ans✔
RNA
,Qs
What contains uracil? - n
Ans✔
RNA
Qs
What codes for proteins? - n
Ans✔
DNA
Qs
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? - n
Ans✔
50 percent
Qs
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? - n
Ans✔
It will swell and probably burst/hypotonic situation
Qs
What is the purpose of phloem tissue in plant stems? - n
Ans✔
It conducts food throughout the plant, it is the system of narrow tubes that
transports sugars and other nutrients
Qs
, Physical factors such as temperature and pH can alter enzyme activity because
they have an effect on the enzyme's - n
Ans✔
Shape, the shape of an enzyme controls it's fit with its substrate.
Qs
Which part of a plants reproductive system is of a different gender than others? - n
Ans✔
Stamen (male reproductive organ)
Qs
What kind of symbiosis exists between a pneumonia bacterium and a human? - n
Ans✔
Parasitism, one organism benefits off another
Qs
The scientific name for a house cat is Felis catus. This indicates the house cats
what? - n
Ans✔
Genus; species
Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
Qs
Beeswax is an example of what kind of molecule? - n
