Hesi A2 Biology Practice Questions Verified and Provided
with A+ Graded Answers Latest Updated 2026
Which organelle is responsible for protein Ribosome
synthesis?
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 50 percent
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?
A cell is in a solution in which the It will swell and probably burst/hypotonic situation
concentration of solutes is higher inside
the cell than outside the
cell. What would you expect to happen to
the cell?
What is the purpose of phloem tissue It conducts food throughout the plant, it is the system of
in plant stems? narrow tubes that transports sugars and other nutrients
Physical factors such as temperature and Shape, the shape of an enzyme controls it's fit with its substrate.
pH can alter enzyme activity because they
have an effect on the enzyme's
Which part of a plants reproductive Stamen (male reproductive organ)
system is of a different gender than
others?
What kind of symbiosis exists between a Parasitism, one organism benefits off another
pneumonia bacterium and a human?
The scientific name for a house cat is Felis Genus; species
catus. This indicates the house cats what? Kingdom/anima
lia
Phylum/Chorda
ta
Class/mammali
a
Order/carnivora
, Family/felidae
Genus/ Felis
Species/catus
Beeswax is an example of what kind of Lipid, waxes oils and fats are lipids
molecule?
What takes place in a lysosome? 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
Which organism reproduces via binary Salmonella
fission?
In which phase of cell division do the Interphase-active phase of a cells reproductive life, the cell
chromosomes replicate? produces nucleic acids and proteins and doubled its # of
chromosomes
In a strand of DNA, you would expect to Thymine/
see adenine paired with? adenine
Cytosine/guani
ne
Hemophilia is a sex linked trait carried on 1 female: 0 male
the X chromosome. In an example of a
male with
hemophilia and a female carrier, what ratio
of the offspring is predicted to have the
disease?
What is represented by this formula Photosynthesis, carbon dioxide pairing with water to form a
6CO2+6H2O=>C6H12O6+6O2 simple sugar and oxygen
3 students measured the mass of a product Precise
of combustion. They recorded measurements
of 5.14g
5.16g and 5.17g if the known mass of the
product is 5.30g how would you describe the
students
measurements?
What is the energy pyramid? Producers>primary consumers>secondary
consumers>decomposers
Which is not a step in the water cycle? Nitrification(nitrogen cycle)
Steps
Condensation(gas to liquid)
Transpiration(loss of water through a plants stomata)
Absorption(intake of water from the water table by plant roots)
Why do we perceive chlorophyll as green? It fails to absorb green light
Absorbs red and blue reflects
green
Why are bacteria and blue green algae often Both are prokaryotes have no true nucleus
classified together?
Which molecule contains glucose? Carbohydrates
Simple carbohydrates are simple sugars, complex
carbohydrates are simple sugars linked with covalent bonds