FNDH 400 Exam 2 Questions and Answers (2022/2023) (Verified Answers)

FNDH 400 Exam 2 Questions and Answers (2022/2023) (Verified Answers) Crypts of Lieberkuhn pits b/w villi Do crypts contain stem cells true/false true 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 or migrate up the villus out of the crypt What happen to enterocytes as they reach the top of the villus They are sloughed off and either digested as lip and protein contain or excreted in feces Absorption is defined as reaching the muscle true/false false reaching the body circulation 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 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 Which is not a macronutrient digestion product ready for uptake A. glucose B. tripeptide C. 2-monoglycerides D. fatty acids E. sucrose E. sucrose 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 Active transport does not require energy to move with a concentration gradient true/false False passive does active requires energy to move against the concentration gradient Cleaving a phosphate bond (dephosphorylation) generally releases energy. true/false true Osmosis moves solvent in