A&P 1 101 MODULE 3 EXAM 3 DIGESTIVE
SYSTEM COMPREHENSIVE TEST PAPER 2026
COMPLETE QUESTIONS AND ANSWERS
EXPERT VERIFIED GRADED A+
◉ Which of the following is not found on the right lobe of the lung?
Answer: cardiac notch
◉ Which of the following provide the greatest surface area for gas
exchange? Answer: alveoli
◉ Which of the following is not a stimulus for breathing? Answer:
rising blood pressure
◉ Which statement about CO2 is incorrect? Answer: More CO2
dissolves in the blood plasma than is carried in the RBCs.
◉ The respiratory membrane is a combination of _______. Answer:
alveolar and capillary walls and their fused basement membranes
◉ The largest amount of carbon dioxide is transported in the
bloodstream in the form of carbonic anhydrase. Answer: False
,◉ How is the bulk of carbon dioxide carried in blood? Answer: as the
bicarbonate ion in the plasma after first entering the red blood cells
◉ Respiratory control centers are located in the ________. Answer:
medulla and pons
◉ The absorptive effectiveness of the small intestines is enhanced by
increasing the surface area of the mucosal lining. Which of the
following accomplish this task? Answer: plicae circularis and
intestinal villi
◉ Due to the the presence of HCl in the stomach, some of the
microbes that often invade other organs of the body are rarely found
in the stomach. Answer: True
◉ As food passes through the digestive tract, it is broken down, so
the nutrients are more readily available to the body. Answer: True
◉ When we ingest large molecules such as lipids, carbohydrates, and
proteins, they must undergo catabolic reactions whereby enzymes
split these molecules. This series of reactions is called ________.
Answer: chemical digestion
,◉ Normally food is contained within the lumen of the
gastrointestinal tract from the time of ingestion until it is completely
digested and the waste prepared for elimination. Answer: True
◉ Hormones that inhibit gastric secretion include ________. Answer:
Secretin
◉ Which of the following is not a phase of gastric secretion? Answer:
Thoracic
◉ Another term for swallowing is deglutition. Answer: True
◉ Chose the incorrect statement regarding bile. Answer: Bile
contains enzymes for digestion.
◉ Chemical digestion reduces large complex molecules to simpler
compounds by the process of ______. Answer: catabolism
◉ Which hormone causes an increased output of enzyme-rich
pancreatic juice and stimulates gallbladder contraction to release
bile? Answer: cholecystokinin
◉ The chemical and mechanical processes of food breakdown are
called ________. Answer: Digestion
, ◉ The terminal portion of the small intestines is known as the
_______. Answer: Ileum
◉ The circular folds of the small intestine enhance absorption by
increasing surface area as it passes through the small intestine.
Answer: True
◉ Which vitamin requires intrinsic factor in order to be absorbed?
Answer: B12
◉ In addition to storage and mechanical breakdown of food, the
stomach ________. Answer: initiates protein digestion and denatures
proteins
◉ The chemical and mechanical phases of digestion from the mouth
through the small intestine are directed toward changing food into
forms that can pass through the epithelial cells lining the mucosa
into the underlying blood and lymphatic vessels. Answer: True
◉ Which of the following is not true of saliva? Answer: contains
enzymes that begin the breakdown of proteins
◉ Peristaltic waves are ___________. Answer: waves of muscular
contractions that propel contents from one point to another
SYSTEM COMPREHENSIVE TEST PAPER 2026
COMPLETE QUESTIONS AND ANSWERS
EXPERT VERIFIED GRADED A+
◉ Which of the following is not found on the right lobe of the lung?
Answer: cardiac notch
◉ Which of the following provide the greatest surface area for gas
exchange? Answer: alveoli
◉ Which of the following is not a stimulus for breathing? Answer:
rising blood pressure
◉ Which statement about CO2 is incorrect? Answer: More CO2
dissolves in the blood plasma than is carried in the RBCs.
◉ The respiratory membrane is a combination of _______. Answer:
alveolar and capillary walls and their fused basement membranes
◉ The largest amount of carbon dioxide is transported in the
bloodstream in the form of carbonic anhydrase. Answer: False
,◉ How is the bulk of carbon dioxide carried in blood? Answer: as the
bicarbonate ion in the plasma after first entering the red blood cells
◉ Respiratory control centers are located in the ________. Answer:
medulla and pons
◉ The absorptive effectiveness of the small intestines is enhanced by
increasing the surface area of the mucosal lining. Which of the
following accomplish this task? Answer: plicae circularis and
intestinal villi
◉ Due to the the presence of HCl in the stomach, some of the
microbes that often invade other organs of the body are rarely found
in the stomach. Answer: True
◉ As food passes through the digestive tract, it is broken down, so
the nutrients are more readily available to the body. Answer: True
◉ When we ingest large molecules such as lipids, carbohydrates, and
proteins, they must undergo catabolic reactions whereby enzymes
split these molecules. This series of reactions is called ________.
Answer: chemical digestion
,◉ Normally food is contained within the lumen of the
gastrointestinal tract from the time of ingestion until it is completely
digested and the waste prepared for elimination. Answer: True
◉ Hormones that inhibit gastric secretion include ________. Answer:
Secretin
◉ Which of the following is not a phase of gastric secretion? Answer:
Thoracic
◉ Another term for swallowing is deglutition. Answer: True
◉ Chose the incorrect statement regarding bile. Answer: Bile
contains enzymes for digestion.
◉ Chemical digestion reduces large complex molecules to simpler
compounds by the process of ______. Answer: catabolism
◉ Which hormone causes an increased output of enzyme-rich
pancreatic juice and stimulates gallbladder contraction to release
bile? Answer: cholecystokinin
◉ The chemical and mechanical processes of food breakdown are
called ________. Answer: Digestion
, ◉ The terminal portion of the small intestines is known as the
_______. Answer: Ileum
◉ The circular folds of the small intestine enhance absorption by
increasing surface area as it passes through the small intestine.
Answer: True
◉ Which vitamin requires intrinsic factor in order to be absorbed?
Answer: B12
◉ In addition to storage and mechanical breakdown of food, the
stomach ________. Answer: initiates protein digestion and denatures
proteins
◉ The chemical and mechanical phases of digestion from the mouth
through the small intestine are directed toward changing food into
forms that can pass through the epithelial cells lining the mucosa
into the underlying blood and lymphatic vessels. Answer: True
◉ Which of the following is not true of saliva? Answer: contains
enzymes that begin the breakdown of proteins
◉ Peristaltic waves are ___________. Answer: waves of muscular
contractions that propel contents from one point to another
