ATI TEAS 7 SCIENCE ACTUAL EXAM QUESTIONS AND ANSWERS WITH
QUESTIONS RATIONALES|WELL STRUCTURED|100% PASS 2025-2026 ANSWERS
Inflammation, production of interferon,
and ingestion of pathogens by phago-
cytes are nonspecific cellular responses C.) The internal aspect of the innate im-
by which of the following? mune system
A.) The internal aspect of adaptive im-
mune system If the external barrier is breached, the
second line of defense is the internal as-
B.) Antibody-mediated immunity pect of the innate immune system, a col-
lection of nonspecific cellular responses
C.) The internal aspect of the innate im- (inflammation, production of interferon,
mune system ingestion of pathogens by phagocytes).
D.) Passive immunity
What feature of the adaptive immune
system decreases the amount of time it
takes for the body to respond to a partic-
ular antigen? B.) Memory cells
A.) Unbroken skin
Memory cells are a type of lymphocyte
B.) Memory Cells that responds more quickly to an antigen
upon reintroduction of the pathogen.
C.) Cytotoxic T-cells
D.) Inflammation
Which of the following occurs in the car-
diac cycle if the impulse triggered a at
the sinoatrial mode never reaches the
Purkinje fibers of the heart?
C.) The ventricles will not contract.
A.) The atria will not contract.
The Purkinje fiber impulse causes the
B.) There will be an absence of systole.
contraction of the ventricles.
C.) The ventricles will not contract.
D.) Diastole will shorten in duration.
, ATI TEAS 7 SCIENCE ACTUAL EXAM QUESTIONS AND ANSWERS WITH
QUESTIONS RATIONALES|WELL STRUCTURED|100% PASS 2025-2026 ANSWERS
Which of the following describes the link
between damages villi and malnutrition?
A.) Damaged villi decrease the nutri-
A.) Damaged villi decrease the nutri-
ent-absorbing surface area in the gas-
ent-absorbing surface area in the gas-
trointestinal tract.
trointestinal tract.
B.) If villi are damaged, the surface area
of the stomach is decreased.
Villi of the small intestine provide a
greater nutrient-absorbing surface area
C.)Peristalsis of the large intestine will be
in the gastrointestinal tract.
diminished.
D.) Damaged villi cause gastric reflux
disease.
Which of the following organs is respon-
sible for the majority of the chemical di-
gestion and absorption of nutrients in the
digestive system? B.) Small intestine
A.) Large intestine
The primary function of the small intes-
B.) Small intestine tine is chemical digestion and absorption
of nutrients.
C.) Liver
D.) Pancreas
Contraction occurs within the thin
filaments slide past the thicker
filaments, causing the sarcom-
A.) actin; myosin
ere unit to shorten or contract.
A.) actin; myosin
Actin and myosin slide past each other,
and the sarcomere unit shrinks.
B.) myosin; axon
C.) axon; actin
QUESTIONS RATIONALES|WELL STRUCTURED|100% PASS 2025-2026 ANSWERS
Inflammation, production of interferon,
and ingestion of pathogens by phago-
cytes are nonspecific cellular responses C.) The internal aspect of the innate im-
by which of the following? mune system
A.) The internal aspect of adaptive im-
mune system If the external barrier is breached, the
second line of defense is the internal as-
B.) Antibody-mediated immunity pect of the innate immune system, a col-
lection of nonspecific cellular responses
C.) The internal aspect of the innate im- (inflammation, production of interferon,
mune system ingestion of pathogens by phagocytes).
D.) Passive immunity
What feature of the adaptive immune
system decreases the amount of time it
takes for the body to respond to a partic-
ular antigen? B.) Memory cells
A.) Unbroken skin
Memory cells are a type of lymphocyte
B.) Memory Cells that responds more quickly to an antigen
upon reintroduction of the pathogen.
C.) Cytotoxic T-cells
D.) Inflammation
Which of the following occurs in the car-
diac cycle if the impulse triggered a at
the sinoatrial mode never reaches the
Purkinje fibers of the heart?
C.) The ventricles will not contract.
A.) The atria will not contract.
The Purkinje fiber impulse causes the
B.) There will be an absence of systole.
contraction of the ventricles.
C.) The ventricles will not contract.
D.) Diastole will shorten in duration.
, ATI TEAS 7 SCIENCE ACTUAL EXAM QUESTIONS AND ANSWERS WITH
QUESTIONS RATIONALES|WELL STRUCTURED|100% PASS 2025-2026 ANSWERS
Which of the following describes the link
between damages villi and malnutrition?
A.) Damaged villi decrease the nutri-
A.) Damaged villi decrease the nutri-
ent-absorbing surface area in the gas-
ent-absorbing surface area in the gas-
trointestinal tract.
trointestinal tract.
B.) If villi are damaged, the surface area
of the stomach is decreased.
Villi of the small intestine provide a
greater nutrient-absorbing surface area
C.)Peristalsis of the large intestine will be
in the gastrointestinal tract.
diminished.
D.) Damaged villi cause gastric reflux
disease.
Which of the following organs is respon-
sible for the majority of the chemical di-
gestion and absorption of nutrients in the
digestive system? B.) Small intestine
A.) Large intestine
The primary function of the small intes-
B.) Small intestine tine is chemical digestion and absorption
of nutrients.
C.) Liver
D.) Pancreas
Contraction occurs within the thin
filaments slide past the thicker
filaments, causing the sarcom-
A.) actin; myosin
ere unit to shorten or contract.
A.) actin; myosin
Actin and myosin slide past each other,
and the sarcomere unit shrinks.
B.) myosin; axon
C.) axon; actin
