HESI A2 BIOLOGY PRACTICE
(CHAMBERLAIN) PRACTICE EXAMINATION
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ The medulla oblongata has what primary responsibility?a) balanceb)
intellectc) vital functionsd) sensory input.
Answer: c) vital functionsThe medulla oblongata is responsible for basic
vital functions, including respiration and heart rate.
◍ parasitism.
Answer: an organism called a parasite harms but does not kill its host
◍ The latissimus dorsi are found in the.
Answer: shoulders
◍ mutualism.
Answer: both symbiotic organisms benefit
◍ steroids.
Answer: -component of membranes -precursors to significant hormones and
drugs
◍ tRNA (transfer RNA).
Answer: -anticodon is located here -carries a specific amino acid-binds to
the ribosome when its codon is sliding through the ribosome
◍ citric acid cycle (Krebs Cycle).
Answer: -in step 2 the pyruvate is transported into a mitochondrion and used
in the first of series of reactions -takes place in the mitochondria -two ATP
molecules, 6 molecules of carbon dioxide and 6 NADH molecules are
produced
,◍ Major event of muscle contraction?.
Answer: stimulation occurs when acetylcholine is released from the end of a
motor neuron
◍ two distinct organelles that produce cell energy.
Answer: 1. mitochondria (eukaryotic cells and are the site of cellular
respiration/energy) 2. chloroplast (found in plants and are the site of
photosynthesis)
◍ What is the purpose of the mastication of food?.
Answer: -to increase its surface areaIncreasing the food's surface area
promotes easier digestion by letting enzymes get to every portion of it.
◍ metabolism.
Answer: sum of all chemical reactions that occur in an organism
◍ mitosis telophase.
Answer: chromosomes gather on each side of the now separating cell
◍ The endocrine system of the body is responsible for:a) defense through the
use of antibodies b) communication through the use of hormonesc)
metabolism through the use of enzymesd) blood flow through the use of the
heart muscle.
Answer: b) communication through the use of hormones
◍ hypothesis.
Answer: a statement or explanation of certain events or happenings
◍ eukaryote cells.
Answer: have a membrane inclosed nucleus and a series of membrane bound
organelles that carry out the functions of the cell as directed by the genetic
information contained in the nucleus(eukaryote: all living organisms except
eubacteria and archaebacteria)
◍ Humans can survive most easily without which of the following?a)
pancreasb) lungsc) gallbladderd) bladder.
Answer: c) gallbladderThe gallbladder's function is to store bile, but the GI
, tract is more than capable of producing bile to digest fat without it.
◍ The pectoralis major muscle is located in which general area?.
Answer: -the chest
◍ mitosis anaphase.
Answer: begins when chromosomes start to separate -chromtids are
considered separate chromosomes
◍ The neuron is composed of a/n ________, which transmits signals toward
the cell body, and a/n ________, which transmits signals away from the cell
body..
Answer: -dendrite, axon
◍ A bone that is part of the upper limbs isa. metatarsalb. metacarpalc. tibiad.
fibula.
Answer: b. metacarpal
◍ photosynthesis.
Answer: 6CO2 + 6H2O + light --> C6H12O6 + 6O2
◍ How many pairs of spinal nerves are known to exit the spinal cord?.
Answer: -31
◍ Bones are classified according to.
Answer: their shape (tissue type: compact or spongy) (shape: long, short,
flat, or irregular)
◍ A woman's body usually ovulates around what day in a normal 30-day
cycle?.
Answer: -day 14
◍ meiosis.
Answer: consist of meiosis I and meiosis II resulting in 4 daughter cells
-each daughter cell contains half as many chromosomes as the parent
◍ conclusion.
Answer: where the data and its significance are fully explained
(CHAMBERLAIN) PRACTICE EXAMINATION
2026 QUESTIONS WITH ANSWERS
GRADED A+
◍ The medulla oblongata has what primary responsibility?a) balanceb)
intellectc) vital functionsd) sensory input.
Answer: c) vital functionsThe medulla oblongata is responsible for basic
vital functions, including respiration and heart rate.
◍ parasitism.
Answer: an organism called a parasite harms but does not kill its host
◍ The latissimus dorsi are found in the.
Answer: shoulders
◍ mutualism.
Answer: both symbiotic organisms benefit
◍ steroids.
Answer: -component of membranes -precursors to significant hormones and
drugs
◍ tRNA (transfer RNA).
Answer: -anticodon is located here -carries a specific amino acid-binds to
the ribosome when its codon is sliding through the ribosome
◍ citric acid cycle (Krebs Cycle).
Answer: -in step 2 the pyruvate is transported into a mitochondrion and used
in the first of series of reactions -takes place in the mitochondria -two ATP
molecules, 6 molecules of carbon dioxide and 6 NADH molecules are
produced
,◍ Major event of muscle contraction?.
Answer: stimulation occurs when acetylcholine is released from the end of a
motor neuron
◍ two distinct organelles that produce cell energy.
Answer: 1. mitochondria (eukaryotic cells and are the site of cellular
respiration/energy) 2. chloroplast (found in plants and are the site of
photosynthesis)
◍ What is the purpose of the mastication of food?.
Answer: -to increase its surface areaIncreasing the food's surface area
promotes easier digestion by letting enzymes get to every portion of it.
◍ metabolism.
Answer: sum of all chemical reactions that occur in an organism
◍ mitosis telophase.
Answer: chromosomes gather on each side of the now separating cell
◍ The endocrine system of the body is responsible for:a) defense through the
use of antibodies b) communication through the use of hormonesc)
metabolism through the use of enzymesd) blood flow through the use of the
heart muscle.
Answer: b) communication through the use of hormones
◍ hypothesis.
Answer: a statement or explanation of certain events or happenings
◍ eukaryote cells.
Answer: have a membrane inclosed nucleus and a series of membrane bound
organelles that carry out the functions of the cell as directed by the genetic
information contained in the nucleus(eukaryote: all living organisms except
eubacteria and archaebacteria)
◍ Humans can survive most easily without which of the following?a)
pancreasb) lungsc) gallbladderd) bladder.
Answer: c) gallbladderThe gallbladder's function is to store bile, but the GI
, tract is more than capable of producing bile to digest fat without it.
◍ The pectoralis major muscle is located in which general area?.
Answer: -the chest
◍ mitosis anaphase.
Answer: begins when chromosomes start to separate -chromtids are
considered separate chromosomes
◍ The neuron is composed of a/n ________, which transmits signals toward
the cell body, and a/n ________, which transmits signals away from the cell
body..
Answer: -dendrite, axon
◍ A bone that is part of the upper limbs isa. metatarsalb. metacarpalc. tibiad.
fibula.
Answer: b. metacarpal
◍ photosynthesis.
Answer: 6CO2 + 6H2O + light --> C6H12O6 + 6O2
◍ How many pairs of spinal nerves are known to exit the spinal cord?.
Answer: -31
◍ Bones are classified according to.
Answer: their shape (tissue type: compact or spongy) (shape: long, short,
flat, or irregular)
◍ A woman's body usually ovulates around what day in a normal 30-day
cycle?.
Answer: -day 14
◍ meiosis.
Answer: consist of meiosis I and meiosis II resulting in 4 daughter cells
-each daughter cell contains half as many chromosomes as the parent
◍ conclusion.
Answer: where the data and its significance are fully explained
