6.1 Digestion and Absorption Flashcards

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1
Q

What makes the food with enzyme move along the gut?

A

contraction of
- circular
- longitudinal
muscle of the small intestine

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2
Q

what does the pancreas secrete in the small intestine?

A

enzymes

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3
Q

what do enzymes digest?

A

macromolecules -> monomers

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4
Q

what do villi do?

A
  • absorb
  • large surface area
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5
Q

what do villi absorb?

A
  • monomers formed by digestion
  • mineral ions
  • vitamins
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6
Q

different methods of membrane transport are required …

A

to absorb different nutrients

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7
Q

what happens in the small intestine?

A
  • digestion of starch
  • transport of the products of digestion to the liver
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8
Q

dialysis tubing

A

model absoption of digested food in the intestine

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9
Q

peristalsis

A
  • contraction of longitudinal muscle expanding the lumen for the food to move into
  • contraction of circular muscle behind the food propels it forwards
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10
Q

digestion

A

break down of large food molecules into smaller molecules

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11
Q

absorption

A

uptake of smaller molecules into the blood

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12
Q

assimilation

A

substances taken to be used

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