HESI A2 BIOLOGY PRACTICE
(CHAMBERLAIN) CERTIFICATION SCRIPT
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◍ What is the function of blood?.
Answer: O2 transportCarry CO2 and metabolic waste away
◍ What is the largest type of biological molecule?
A)Lipid.B)Protein.C)Carbohydrate.D)Steroid..
Answer: B)Protein.
◍ How are the five types of leukocytes distinguished?.
Answer: SizeAppearance of nucleusStaining propertiesPresence or absence
of visible cytoplasmic granules
◍ What is the function of the nephrons?.
Answer: Filter material out of blood brought through the kidneys by the
renal artery.
◍ What is a tissue?.
Answer: A group of cells that act together to perform a specific function.
◍ What must be present for a muscle cell to contract?.
Answer: Calcium and ATP
◍ Which molecules are responsible for the base pairing action in DNA?
A)Phosphate groups.B)Sugar molecules.C)Nitrogenous bases.D)Codons..
Answer: C)Nitrogenous bases.
◍ What is the function of flexors?.
Answer: Reduce the angle at the joint.
,◍ Cells with a high rate of protein synthesis generally have a large number of
which of the following cellular structures?
A)Mitochondria.B)Ribosomes.C)Lysosomes.D)Golgi apparati..
Answer: B)Ribosomes.
◍ It is known that the gene that codes for male pattern baldness depends on the
gene for red hair. This type of interaction between alleles is known as:
A)Interplay.B)Affectation.C)Genotype.D)Epistasis..
Answer: D)Epistasis.
◍ Based on the inherent properties of water molecules, what effect would a
large body of water have on the temperature of a climate?
A)Increase.B)Decrease.C)Stabilize.D)Destabilize..
Answer: C)Stabilize.
◍ A scientist conducts an experiment to discover the effect of music on plant
growth. He hypothesizes that the music will help plants grow at a faster rate
than plants without music. By the end of the experiment, plants grown with
music playing grew to an average height of 5.6 inches, while plants grown
without music playing grew to an average height of 2.3 inches. Which of the
following is the scientist's correct conclusion? A)All plants grow better with
music.B)In the experiment, plants grown with music grew better than those
grown without it.C)In the experiment, plants grown without music grew
better than those grown without it.D)All plants grow better without music..
Answer: B)In the experiment, plants grown with music grew better than
those grown without it.
◍ What is the function of protein hormones?.
Answer: Stay at the cell surface and act through second messenger.
◍ What makes up the final part of the axial skeleton?.
Answer: the thoraxthe sternum12 pairs of ribs.
◍ For every glucose molecule utilized during cellular respiration,
approximately how many ATP molecules can be produced? A)14 to 18.B)18
to 25.C)32 to 36.D)68 to 70..
, Answer: C)32 to 36.
◍ What occurs in the female ovarian follicles every month?.
Answer: FSH stimulates eggs to ripen within the follicle.
◍ What are the functions of the skeletal system?.
Answer: Support, movement, blood cell formation, protection of internal
organs, detoxification, muscle attachment, mineral storage. A MIME
BATHED SEALS SINGING "MY PONY"
◍ What is the function of tRNA during DNA transcription? A)tRNA bonds
together amino acids and then releases them to create an elongated chain of
amino acids.B)tRNA contains codons during DNA transcription.C)tRNA is
the piece of DNA produced during transcription.D)tRNA brings the amino
acids to the site of synthesis..
Answer: D)tRNA brings the amino acids to the site of synthesis.
◍ What is the difference between saturated and unsaturated fatty acids?
A)Saturated fatty acids contain double bonds, unlike unsaturated fatty
acids.B)Saturated fatty acids contain no double bonds, unlike unsaturated
fatty acids.C)Saturated fatty acids often contain two or more pairs of double
bonds, unlike unsaturated fatty acids.D)There is no difference between
saturated and unsaturated fatty acids..
Answer: B)Saturated fatty acids contain no double bonds, unlike unsaturated
fatty acids.
◍ What happens to arteries as the go further from the heart?.
Answer: They become thinner
◍ What nutrients are absorbed into the blood?.
Answer: The amino acids and simple sugars derived from proteins and
carbs.
◍ The liver is an organ responsible for detoxifying the body of many harmful
substances. Therefore, you might expect the liver to contain a high amount
of: A)Rough endoplasmic
reticulum.B)Lysosomes.C)Mitochondria.D)Smooth endoplasmic reticulum..
(CHAMBERLAIN) CERTIFICATION SCRIPT
2026 QUESTIONS WITH SOLUTIONS
GRADED A+
◍ What is the function of blood?.
Answer: O2 transportCarry CO2 and metabolic waste away
◍ What is the largest type of biological molecule?
A)Lipid.B)Protein.C)Carbohydrate.D)Steroid..
Answer: B)Protein.
◍ How are the five types of leukocytes distinguished?.
Answer: SizeAppearance of nucleusStaining propertiesPresence or absence
of visible cytoplasmic granules
◍ What is the function of the nephrons?.
Answer: Filter material out of blood brought through the kidneys by the
renal artery.
◍ What is a tissue?.
Answer: A group of cells that act together to perform a specific function.
◍ What must be present for a muscle cell to contract?.
Answer: Calcium and ATP
◍ Which molecules are responsible for the base pairing action in DNA?
A)Phosphate groups.B)Sugar molecules.C)Nitrogenous bases.D)Codons..
Answer: C)Nitrogenous bases.
◍ What is the function of flexors?.
Answer: Reduce the angle at the joint.
,◍ Cells with a high rate of protein synthesis generally have a large number of
which of the following cellular structures?
A)Mitochondria.B)Ribosomes.C)Lysosomes.D)Golgi apparati..
Answer: B)Ribosomes.
◍ It is known that the gene that codes for male pattern baldness depends on the
gene for red hair. This type of interaction between alleles is known as:
A)Interplay.B)Affectation.C)Genotype.D)Epistasis..
Answer: D)Epistasis.
◍ Based on the inherent properties of water molecules, what effect would a
large body of water have on the temperature of a climate?
A)Increase.B)Decrease.C)Stabilize.D)Destabilize..
Answer: C)Stabilize.
◍ A scientist conducts an experiment to discover the effect of music on plant
growth. He hypothesizes that the music will help plants grow at a faster rate
than plants without music. By the end of the experiment, plants grown with
music playing grew to an average height of 5.6 inches, while plants grown
without music playing grew to an average height of 2.3 inches. Which of the
following is the scientist's correct conclusion? A)All plants grow better with
music.B)In the experiment, plants grown with music grew better than those
grown without it.C)In the experiment, plants grown without music grew
better than those grown without it.D)All plants grow better without music..
Answer: B)In the experiment, plants grown with music grew better than
those grown without it.
◍ What is the function of protein hormones?.
Answer: Stay at the cell surface and act through second messenger.
◍ What makes up the final part of the axial skeleton?.
Answer: the thoraxthe sternum12 pairs of ribs.
◍ For every glucose molecule utilized during cellular respiration,
approximately how many ATP molecules can be produced? A)14 to 18.B)18
to 25.C)32 to 36.D)68 to 70..
, Answer: C)32 to 36.
◍ What occurs in the female ovarian follicles every month?.
Answer: FSH stimulates eggs to ripen within the follicle.
◍ What are the functions of the skeletal system?.
Answer: Support, movement, blood cell formation, protection of internal
organs, detoxification, muscle attachment, mineral storage. A MIME
BATHED SEALS SINGING "MY PONY"
◍ What is the function of tRNA during DNA transcription? A)tRNA bonds
together amino acids and then releases them to create an elongated chain of
amino acids.B)tRNA contains codons during DNA transcription.C)tRNA is
the piece of DNA produced during transcription.D)tRNA brings the amino
acids to the site of synthesis..
Answer: D)tRNA brings the amino acids to the site of synthesis.
◍ What is the difference between saturated and unsaturated fatty acids?
A)Saturated fatty acids contain double bonds, unlike unsaturated fatty
acids.B)Saturated fatty acids contain no double bonds, unlike unsaturated
fatty acids.C)Saturated fatty acids often contain two or more pairs of double
bonds, unlike unsaturated fatty acids.D)There is no difference between
saturated and unsaturated fatty acids..
Answer: B)Saturated fatty acids contain no double bonds, unlike unsaturated
fatty acids.
◍ What happens to arteries as the go further from the heart?.
Answer: They become thinner
◍ What nutrients are absorbed into the blood?.
Answer: The amino acids and simple sugars derived from proteins and
carbs.
◍ The liver is an organ responsible for detoxifying the body of many harmful
substances. Therefore, you might expect the liver to contain a high amount
of: A)Rough endoplasmic
reticulum.B)Lysosomes.C)Mitochondria.D)Smooth endoplasmic reticulum..
