What happens during peristalsis in the digestive system?
A) Fat is emulsified in the small intestine.
B) Rectal sphincters are voluntarily controlled to regulate defecation.
C) Nutrients are transported to the liver through the hepatic portal vein.
D) Smooth muscle contracts to move food along the alimentary canal.
Correct Answer:
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Q4: Certain nutrients are considered "essential" in the
Q5: Which vitamin plays a key role in
Q6: An advantage of a complete digestive system
Q10: Carbohydrate digestion yields monosaccharides,whereas protein digestion yields
Q11: Bile salts
A)are enzymes.
B)are manufactured by the pancreas.
C)emulsify
Q12: A general rule relating the capacity of
Q13: Salivary amylase digests
A)protein.
B)starches.
C)monosaccharides.
D)glucose.
Q14: The small intestine has a very large
Q32: Pepsin is a digestive enzyme that
A) is
Q40: Digestive secretions with a pH of 2
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