HESI A2 PRACTICE QUESTIONS WITH
CORRECT ANSWERS
1) Which of the following describes the primary function of the
respiratory system?
A) to create sound and speech
B) to take oxygen into the body while removing carbon dioxide
C) to transport nutrients to the cells and tissue of the body
D) to act as a barrier between the body's organs and outside
influences - CORRECT ANSWER-to take oxygen into the body
while removing carbon dioxide
2) Which of the following is the first step of the scientific
method?
A) construct a hypothesis
B) make observations
C) analyze data
D) form a question - CORRECT ANSWER-make observations
3) The process of organisms with an advantageous trait
surviving more often and producing more offspring than
organisms without the advantageous trait describes which of
the following basic mechanisms?
A) gene flow
,B) genetic drift
C) mutation
D) natural selection - CORRECT ANSWER-natural selection
4) Which of the following is the group of basophils that
produces follicle-stimulating hormone (FSH) and luteinizing
hormone?
A) gonadotrophs
B) thyotroph
C) chromophil
D) pituicytes - CORRECT ANSWER-gonadotrophs
5) Which of the following are considered the basic units of the
female reproductive system, each containing a single immature
egg cell that is released during ovulation?
A) oocytes
B) follicles
C) ovaries
D) fundus - CORRECT ANSWER-follicles
6) Which of the following describes the muscular organ that
processes food material into increasingly smaller pieces, mixes
it with saliva to create a bolus, and creates a barrier to transport
food into the esophagus?
A) pharynx
,B) tongue
C) diaphragm
D) stomach - CORRECT ANSWER-tongue
7) Which of the following chambers of the heart receives blood
returning from the lungs during pulmonary circulation?
A) left atrium
B) right atrium
C) left ventricle
D) right ventricle - CORRECT ANSWER-left atrium
8) Which of the following is the lobe in the cerebral cortex
primarily responsible for processing and integrating sensory
information received from the rest of the body?
A) frontal lobe
B) occipital lobe
C) parietal lobe
D) temporal lobe - CORRECT ANSWER-parietal lobe
9) Which of the following is an example of adaptive, or specific,
immunity?
A) inflammation
B) fever
, C) humoral
D) phagocytosis - CORRECT ANSWER-humoral
10) Which of the following describes a situation in which
research results are consistent with every subsequent
experiment, but the test used in the experiment does not
measure what it claims to measure?
A) reliable, but not valid
B) valid, but not reliable
C) neither reliable or valid
D) both reliable and valid - CORRECT ANSWER-reliable, but
not valid
11) Which of the following Mendellian laws describes how pairs
of alleles within genes separate and recombine separately from
other genes?
A) law of segregation
B) law of dominance
C) law of independent assortment
D) law of predictive traits - CORRECT ANSWER-law of
independent assortment
12) Which of the following describes how atomic radius varies
across the periodic table?
A) atomic radius increases from top to bottom and left to right
on the periodic table
CORRECT ANSWERS
1) Which of the following describes the primary function of the
respiratory system?
A) to create sound and speech
B) to take oxygen into the body while removing carbon dioxide
C) to transport nutrients to the cells and tissue of the body
D) to act as a barrier between the body's organs and outside
influences - CORRECT ANSWER-to take oxygen into the body
while removing carbon dioxide
2) Which of the following is the first step of the scientific
method?
A) construct a hypothesis
B) make observations
C) analyze data
D) form a question - CORRECT ANSWER-make observations
3) The process of organisms with an advantageous trait
surviving more often and producing more offspring than
organisms without the advantageous trait describes which of
the following basic mechanisms?
A) gene flow
,B) genetic drift
C) mutation
D) natural selection - CORRECT ANSWER-natural selection
4) Which of the following is the group of basophils that
produces follicle-stimulating hormone (FSH) and luteinizing
hormone?
A) gonadotrophs
B) thyotroph
C) chromophil
D) pituicytes - CORRECT ANSWER-gonadotrophs
5) Which of the following are considered the basic units of the
female reproductive system, each containing a single immature
egg cell that is released during ovulation?
A) oocytes
B) follicles
C) ovaries
D) fundus - CORRECT ANSWER-follicles
6) Which of the following describes the muscular organ that
processes food material into increasingly smaller pieces, mixes
it with saliva to create a bolus, and creates a barrier to transport
food into the esophagus?
A) pharynx
,B) tongue
C) diaphragm
D) stomach - CORRECT ANSWER-tongue
7) Which of the following chambers of the heart receives blood
returning from the lungs during pulmonary circulation?
A) left atrium
B) right atrium
C) left ventricle
D) right ventricle - CORRECT ANSWER-left atrium
8) Which of the following is the lobe in the cerebral cortex
primarily responsible for processing and integrating sensory
information received from the rest of the body?
A) frontal lobe
B) occipital lobe
C) parietal lobe
D) temporal lobe - CORRECT ANSWER-parietal lobe
9) Which of the following is an example of adaptive, or specific,
immunity?
A) inflammation
B) fever
, C) humoral
D) phagocytosis - CORRECT ANSWER-humoral
10) Which of the following describes a situation in which
research results are consistent with every subsequent
experiment, but the test used in the experiment does not
measure what it claims to measure?
A) reliable, but not valid
B) valid, but not reliable
C) neither reliable or valid
D) both reliable and valid - CORRECT ANSWER-reliable, but
not valid
11) Which of the following Mendellian laws describes how pairs
of alleles within genes separate and recombine separately from
other genes?
A) law of segregation
B) law of dominance
C) law of independent assortment
D) law of predictive traits - CORRECT ANSWER-law of
independent assortment
12) Which of the following describes how atomic radius varies
across the periodic table?
A) atomic radius increases from top to bottom and left to right
on the periodic table
