HESI A2 Biology Practice
Questions | Study Guide
with Answers and
Rationales | Graded A+ |
Guaranteed Success
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive Rationales
Included
, 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 50 percent
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 concentration of solutes It will swell and probably burst/hypotonic situation
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 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 Shape, the shape of an enzyme controls it's fit with its substrate.
enzyme activity because they have an effect on the
enzyme's
Which part of a plants reproductive system is of a different Stamen (male reproductive organ)
gender than others?
What kind of symbiosis exists between a pneumonia Parasitism, one organism benefits off another
bacterium and a human?
The scientific name for a house cat is Felis catus. This Genus; species
indicates the house cats what? Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
Questions | Study Guide
with Answers and
Rationales | Graded A+ |
Guaranteed Success
Updated 2026 Questions and Answers
100% Verified Exam Prep and Comprehensive Rationales
Included
, 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 50 percent
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 concentration of solutes It will swell and probably burst/hypotonic situation
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 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 Shape, the shape of an enzyme controls it's fit with its substrate.
enzyme activity because they have an effect on the
enzyme's
Which part of a plants reproductive system is of a different Stamen (male reproductive organ)
gender than others?
What kind of symbiosis exists between a pneumonia Parasitism, one organism benefits off another
bacterium and a human?
The scientific name for a house cat is Felis catus. This Genus; species
indicates the house cats what? Kingdom/animalia
Phylum/Chordata
Class/mammalia
Order/carnivora
Family/felidae
Genus/ Felis
Species/catus
