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20 Cards in this Set
- Front
- Back
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Place the 5 steps of digestion in most animals with a digestive tube in the proper order. |
Mechanical processing-secretion of enzymes-enzymatic hydrolysis-absorption-elimination MSEAE MS. excuse angry eagels |
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Which cells produce pepsinogen in the stomach? |
chief cells |
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A byproduct of digestion in the stomach of some mammals is _______, and it may be produced in large quantities in _______. |
methane; ruminants |
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Which of the following statements is correct? |
Extracellular digestion may take place in a tube contained inside the body |
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Place the layers of a mammalian gut in order from outside inward, toward the lumen |
Serosa-muscularis-submucosa-mucosa *se-mu-sub-muc |
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Which layer(s) of the digestive tract in mammals directly contacts the lumen? |
mucosa |
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Which of the following cell types is NOT found in the stomach? |
brush-border cells |
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Which two structures (found in different organisms) both serve to increase the absorptive surfaces of the intestines? |
typhlosoles and villi |
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Which part of a bird's digestive system contains sand and rocks to aid in mechanical digestion? |
gizzard |
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The digestion of lipids in humans begins in the |
small intestine |
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Food is physically prevented from prematurely leaving the stomach by _________. |
a sphincter |
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Which of the following hormones is NOT directly involved in controlling digestion in humans? |
thyroxin |
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Which of the following organs does NOT release fluids into the duodenum to aid in digestion? |
spleen |
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Which vitamin is produced in humans when exposed to sunlight? |
D |
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Overall the control of digestion is exerted by the _________. |
hypothalamus |
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Most animal digest their food through _________. |
primarily extracellular digestion |
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A relatively long intestine is a characteristic of animals that eat ________. |
plants |
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The digestion of starches begins in which structure of the digestive tract? |
mouth |
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Which of the following molecules can enter intestinal mucosa cells? |
monosaccharides |
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Which of the following structures prevents food from entering the nasal passages during swallowing? |
soft palate |
