Biology (Raven), 10th Edition

Chapter 47: The Digestive System

Pre-Test

1
Which of these is NOT one of the tissue layers of the gastrointestinal tract?
A)Muscularis
B)Serosa
C)Cecum
D)Mucosa
E)Submucosa
2
Rhythmic muscular contractions and relaxation of the gastrointestinal tract that propels food to the stomach is called
A)Digestion
B)Peristalsis
C)Absorption
D)Fermentation
E)Rumination
3
Animals with four-chambered stomachs are called
A)ruminants.
B)herbivores.
C)omnivores.
D)carnivores.
E)digestivores.
4
Increasing chyme acidity - lowering its pH - primarily stimulates the release of which enterogastrone?
A)CCK
B)GIP
C)Bicarbonate
D)Lysozyme
E)Secretin
5
The liver is responsible for all of these EXCEPT:
A)Cholecystokinin (CCK)
B)Detoxification
C)Regulation of steroid hormone levels
D)Production of proteins found in the blood plasma
E)Modifies chemicals to maintain homeostasis
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