2025
Which type of diffusion can move sub-
Facilitated diffusion stances down concentration gradients
utilizing a transporter?
Which type of diffusion can move nutri-
ents against the concentration from an
Active transport
area of low concentration to an area of
high?
Which type of diffusion can move sub-
stances easily in and out of cells down
Passive diffusion
concentration gradients through the cell
membrane?
passageway for food Esophagus
hold volume of food and mechanically
stomach
and chemically digest it
site of digestion and absorption small intestine
reabsorbs water and some vitamins large intestine
passes undigested foodstuffs from the
rectum
body
releases saliva containing enzymes (ac-
Salivary glands
cessory organ)
produces bile to breakdown fats (acces-
liver
sory organ)
stores bile produced by the liver to be
released into the intestine to digest fats Gallbladder
(accessory organ)
release digestive enzymes to chemically
pancreas
digest food (accessory organ)
salivary glands, liver, gallbladder, pan-
Accessory GI organs
creas
True or False. If false, explain why it is
false.
True Intrinsic factor is a vital glycoprotein pro-
duced in the stomach and is necessary
for the B12 to be absorbed.
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, Portage Nutrition BIOD 121 Exam 2
2025
gastric acid enters the esophagus dam-
heartburn
aging the epithelial lining
loose watery and frequent stool diarrhea
small pouches that push out through
weak spots in the colon that can become diverticulosis
inflamed
associated with bloating, abdominal
Irritable bowel syndrome
pains, cramps, diarrhea, or constipation
sores that develop along the GI tract trig-
gered by H. Pylori, NSAIDs, stress or Peptic ulcer
smoking
Possible answers:
eating smaller meals that are low in fat,
chewing food well,
avoiding overeating, and limiting coffee,
List 1 dietary treatment for heartburn:
tea, alcohol and certain spices
waiting 2 hours after a meal before lying
down
sleep with the head of the bed elevated
Treatment usually requires increased flu-
id consumption to prevent dehydration.
List a dietary treatment for diarrhea.
A diet of broth, tea, toast, and low fiber
foods should be consumed, as tolerated.
Which of the following is NOT True con-
cerning blood sugar regulation?
The pancreas influences blood sugar
Glucagon helps to lower blood sugar lev- regulation
els Excess glucose is stored as glycogen
Hormones are responsible for control
High blood sugar is called hyperglycemia
Glucagon helps to lower blood sugar lev-
els
The monomer (single unit that can be
amino acids
absorbed) proteins are digested into
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