FNDH 400 Exam 2 Questions and Answers Verified Answers

FNDH 400 Exam 2 Questions and Answers Verified Answers

1. Crypts of Lieberkuhn>>>>pits b/w villi
2. Do crypts contain stem cells true/false>>>>true
3. Enterocytes a type of cell from the stem cells in crypt mature as you go
down more into the crypts true/false>>>>False enterocytes mature as the
resin ormigrate up the villus out of the crypt
4. What happen to enterocytes as they reach the top of the
villus>>>>They aresloughed off and either digested as lip and protein contain
or excreted in feces
5. Absorption is defined as reaching the muscle true/false>>>>false
reaching thebody circulation
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6. Compounds that are taken up might not necessarily be absorbed because
the enterocyte containing the compound might be sloughed off before absorption occurs. true/false>>>>true
7. At the top of villi are the crypts of Lieberkühn which contain stem cells,
many of which differentiate to become enterocytes as they move down the
villi, before ultimately being sloughed off. true/false>>>>false found in the
pits between villi, and the enterocytes move up not down villi
8. Which is not a macronutrient digestion product ready for uptake
A. glucose B. tripeptide C. 2-monoglycerides D. fatty acids E.
sucrose>>>>E.sucrose
9. Which is not a protein the thelps move compounds through the phospholipid bilayer cell membrane A. pump B. carrier C. channel D. transporter E.
tunnel>>>>E. tunnel
10. Active transport does not require energy to move with a concentration
gradient true/false>>>>False passive does active requires energy to move
againstthe concentration gradient
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11. Cleaving a phosphate bond (dephosphorylation) generally releases energy. true/false>>>>true
12. Osmosis moves solvent instead of solute true/false>>>>true
13. A solute moving from lower concentration to higher concentration across
a membrane is moving with its concentration gradient. true/false>>>>false
mov-ing against its concentration gradient
14. What are the three forms of passive uptake/transport>>>>simple
diffusion,osmosis, facilitated diffusion

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