Nutrition 1020 Exam 3 WSU questions and answers 2026\2027
A+ Grade
digestion
- correct answer breaking down of food
big food parts into smaller ones
- correct answer mechanical, involves muscles and nerves
big nutrients into smaller ones
- correct answer chemical, involves acid, enzymes, and hormones
enzyme
- correct answer protein that catalyzes metabolic reactions and are necessary for most biochemical
reactions to occur
- digestive enzymes break down food
ex) amylase for carbs
protease for proteins
lipase for lipids/fats
Hormone
- correct answer chemicals produced by cells (in an endocrine gland) are secreted, then affect the
behavior of cells at distal sites in the body
ex) cholecystokinin and secretin in digestion
mechanical digestion
- correct answer chewing (mastication)
,chemical digestion
- correct answer saliva (lubrication), amylase (breaks down digestible carbs)
food becomes bolus
esophagus
- correct answer persitalsis begins here
peristalsis
- correct answer muscular wave action that occurs throughout the intestinal tract
-controlled by central nervous system and facilitates excretion by propelling food stuff through the body
stomach
- correct answer muscular organ and storage reservoir
- mechanically digests by mixing and churning
- chemically digests food with acid and enzymes (pepsin)
- bolus becomes chyme
Small intestine
- correct answer duodenum(front)
jejunum (middle)
ileum (end)
Signaling the accessory organs
- correct answer - for assistance in digesting the food
- by hormones
- cells in intestinal wall produce hormones cholecystokinin and secretin which enter blood stream and
signal accessory organs
The liver
- correct answer makes bile
, gallbladder
- correct answer stores bile
pancreas
- correct answer makes enzymes for the chemical digestion of carbs, proteins, and fats
- makes sodium bicarbonate to neutralize stomach acids
Function of Bile
- correct answer emulsifier
ex) lipase enzyme-bile breaks down fat so it fits in the enzyme to digest
passive (simple) diffusion (transport)
- correct answer nutrients like water and lipid byproducts pass freely across membranes via a
concentration gradient
facilitated diffusion (transport)
- correct answer nutrients like water soluble vitamins diffuse across membranes using a
specific/selective transport proteins
sites of absorption
- correct answer duodenum: many nutrients
jejunum: many nutrients
ileum: only selected nutrients
colon (lg intestine): water
Transportation of Nutrients
- correct answer blood vessels: water soluble nutrients
lymphatic vessels: fat soluble nutrients
cellular storage
- correct answer short term, intermediate, long term
A+ Grade
digestion
- correct answer breaking down of food
big food parts into smaller ones
- correct answer mechanical, involves muscles and nerves
big nutrients into smaller ones
- correct answer chemical, involves acid, enzymes, and hormones
enzyme
- correct answer protein that catalyzes metabolic reactions and are necessary for most biochemical
reactions to occur
- digestive enzymes break down food
ex) amylase for carbs
protease for proteins
lipase for lipids/fats
Hormone
- correct answer chemicals produced by cells (in an endocrine gland) are secreted, then affect the
behavior of cells at distal sites in the body
ex) cholecystokinin and secretin in digestion
mechanical digestion
- correct answer chewing (mastication)
,chemical digestion
- correct answer saliva (lubrication), amylase (breaks down digestible carbs)
food becomes bolus
esophagus
- correct answer persitalsis begins here
peristalsis
- correct answer muscular wave action that occurs throughout the intestinal tract
-controlled by central nervous system and facilitates excretion by propelling food stuff through the body
stomach
- correct answer muscular organ and storage reservoir
- mechanically digests by mixing and churning
- chemically digests food with acid and enzymes (pepsin)
- bolus becomes chyme
Small intestine
- correct answer duodenum(front)
jejunum (middle)
ileum (end)
Signaling the accessory organs
- correct answer - for assistance in digesting the food
- by hormones
- cells in intestinal wall produce hormones cholecystokinin and secretin which enter blood stream and
signal accessory organs
The liver
- correct answer makes bile
, gallbladder
- correct answer stores bile
pancreas
- correct answer makes enzymes for the chemical digestion of carbs, proteins, and fats
- makes sodium bicarbonate to neutralize stomach acids
Function of Bile
- correct answer emulsifier
ex) lipase enzyme-bile breaks down fat so it fits in the enzyme to digest
passive (simple) diffusion (transport)
- correct answer nutrients like water and lipid byproducts pass freely across membranes via a
concentration gradient
facilitated diffusion (transport)
- correct answer nutrients like water soluble vitamins diffuse across membranes using a
specific/selective transport proteins
sites of absorption
- correct answer duodenum: many nutrients
jejunum: many nutrients
ileum: only selected nutrients
colon (lg intestine): water
Transportation of Nutrients
- correct answer blood vessels: water soluble nutrients
lymphatic vessels: fat soluble nutrients
cellular storage
- correct answer short term, intermediate, long term
