PRACTICE QUESTIONS ANSWERS
ACCURATE A+
◉ Which is how food moves through the gastrointestinal tract by using
peristalsis?
Answer: propulsion
◉ Which involves movement of indigestible solid wasters form the
gastrointestinal tract?
Answer: defecation
◉ The process of deglutition results in
Answer: swallowing
◉ Pepsinogen, an inactive digestive enzyme, is secreted by the
Answer: chief cells of the stomach
◉ Control of gastric secretion is provided by
Answer: both neural and hormonal mechanisms
◉ The small intestine receives ______ from the liver and gall bladder
and ______ from the pancreas.
Answer: bile, pancreatic juice
,◉ Which is NOT a component of bile?
Answer: digestive enzymes
◉ Which is an exocrine product of the pancreas?
Answer: bicarbonate
◉ Which hormone induces secretion of enzyme-rich pancreatic juice?
Answer: CCK (cholecystokinin)
◉ Bile production and secretion is promoted by
Answer: secretin
◉ Most chemical digestion and absorption occurs in the
Answer: small intestine
◉ Inadequate colonic water absorption results in
Answer: diarhea
◉ Which is NOT a function of the normal bacterial flora of the colon?
Answer: hydrolysis of proteins to supply amino acids
◉ The stimulus that brings about the need for defecation is
, Answer: distension of rectum
◉ You have just eaten a meal high in complex carbohydrates. Which of
the following enzymes will help to digest the meal?
Answer: amylase
◉ The absorption of which ion is coupled to the absorption of glucose or
amino acids?
Answer: Na+
◉ Digestion of table sugar requires
Answer: sucrase
◉ Dietary fats are important because
Answer: they help the body absorb fat-soluble vitamins
◉ Select the correct statement about proteins
Answer: Proteins will be used by most cells for ATP synthesis if
insufficient carbohydrates are ingested.
◉ Vitamins are organic compounds. They
Answer: often function as coenzymes to assist in catalysis
◉ The primary function of cellular respiration is to