HESI A2 Biology Practice Q's with Verified Answers
Using percent of body weight calculations, which of the following categories is found in the highest
concentration in the body?
Nucleic acids
Lipids
Carbohydrates
Proteins -Ans>>Proteins
Which of the following is not considered a major class of biological units?
Viruses
Eukaryotic cells
Prokaryotic cells
Cytosol cells -Ans>>Cytosol cells
Which of the following reactions most appropriately matches the following definition: at a state of
chemical equilibrium, the product of the reaction has required almost all of the reactants.
Irreversible reaction
Reversible reaction
Combination reaction
Catalyst reaction -Ans>>Irreversible reaction
In which of the following stages of glucose breakdown is the most energy produced?
Glycolysis
Krebs Cycle
Oxidative Phosphorylation
Citric Acid Cycle -Ans>>Oxidative Phosphorylation
Arterioles, venules, and capillaries are collectively known as _____.
Macrocirculation
Microcirculation
Pulmonary trunk
Hydrostatic gradient -Ans>>Microcirculation
If an organism is AaBb, which of the following combinations in the gametes is impossible?
AB
aa
aB
Ab -Ans>>aa
What is the typical result of mitosis in humans?
2 diploid cells
2 haploid cells
4 diploid cells
4 haploid cells -Ans>>2 diploid cells
How does water affect the temperature of a living thing?
Water increases temperature
, Water keeps temperature stable
Water decreases temperature
Water does not affect temperature -Ans>>Water keeps temperature stable
Which of the following is not a product of the Krebs cycle?
carbon dioxide
oxygen
adenosine triphospate (ATP)
energy carriers -Ans>>oxygen
What kind of bond connects sugar and phosphate in DNA?
hydrogen
ionic
covalent
overt -Ans>>covalent
What is the second part of an organism's scientific name?
species
phylum
population
kingdom -Ans>>species
How are lipids different than other organic molecules?
They are indivisible
They are not water soluble
They contain zinc
They form long proteins -Ans>>They are not water soluble
Which of the following is not a steroid?
cholesterol
estrogen
testosterone
hemoglobin -Ans>>hemoglobin
Which of the following properties is responsible for the passage of water through a plant?
cohesion
adhesion
osmosis
evaporation -Ans>>cohesion
Which hormone is produced by the pineal gland?
insulin
testosterone
melatonin
epinephrine -Ans>>melatonin
What is the name of the organelle that organizes protein synthesis?
mitochondrion
nucleus
ribosome
Using percent of body weight calculations, which of the following categories is found in the highest
concentration in the body?
Nucleic acids
Lipids
Carbohydrates
Proteins -Ans>>Proteins
Which of the following is not considered a major class of biological units?
Viruses
Eukaryotic cells
Prokaryotic cells
Cytosol cells -Ans>>Cytosol cells
Which of the following reactions most appropriately matches the following definition: at a state of
chemical equilibrium, the product of the reaction has required almost all of the reactants.
Irreversible reaction
Reversible reaction
Combination reaction
Catalyst reaction -Ans>>Irreversible reaction
In which of the following stages of glucose breakdown is the most energy produced?
Glycolysis
Krebs Cycle
Oxidative Phosphorylation
Citric Acid Cycle -Ans>>Oxidative Phosphorylation
Arterioles, venules, and capillaries are collectively known as _____.
Macrocirculation
Microcirculation
Pulmonary trunk
Hydrostatic gradient -Ans>>Microcirculation
If an organism is AaBb, which of the following combinations in the gametes is impossible?
AB
aa
aB
Ab -Ans>>aa
What is the typical result of mitosis in humans?
2 diploid cells
2 haploid cells
4 diploid cells
4 haploid cells -Ans>>2 diploid cells
How does water affect the temperature of a living thing?
Water increases temperature
, Water keeps temperature stable
Water decreases temperature
Water does not affect temperature -Ans>>Water keeps temperature stable
Which of the following is not a product of the Krebs cycle?
carbon dioxide
oxygen
adenosine triphospate (ATP)
energy carriers -Ans>>oxygen
What kind of bond connects sugar and phosphate in DNA?
hydrogen
ionic
covalent
overt -Ans>>covalent
What is the second part of an organism's scientific name?
species
phylum
population
kingdom -Ans>>species
How are lipids different than other organic molecules?
They are indivisible
They are not water soluble
They contain zinc
They form long proteins -Ans>>They are not water soluble
Which of the following is not a steroid?
cholesterol
estrogen
testosterone
hemoglobin -Ans>>hemoglobin
Which of the following properties is responsible for the passage of water through a plant?
cohesion
adhesion
osmosis
evaporation -Ans>>cohesion
Which hormone is produced by the pineal gland?
insulin
testosterone
melatonin
epinephrine -Ans>>melatonin
What is the name of the organelle that organizes protein synthesis?
mitochondrion
nucleus
ribosome
