DIGESTION & ABSORPTION – LIPIDS QUESTIONS WITH 100% CORRECT ANSWERS { GRADED A+}

DIGESTION & ABSORPTION – LIPIDS

QUESTIONS WITH 100% CORRECT

ANSWERS { GRADED A+}




where does the process of digestion start for TG? - ✔✔the stomach


what enzymes are involved in TG digestion in the stomach? - ✔✔-

gastric lipase

- HCL acid & pepsin


where does gastric lipase come from? - ✔✔chief cells in stomach


what is lingual lipase? - ✔✔enzyme released by serous gland (under the

tongue)

- doesn't really do anything after infancy

, how much digestion of TG occurs in the stomach? - ✔✔10-30%


what does gastric lipase act preferentially on? - ✔✔short & medium

chain FA

what has to occur for dietary fat to be hydrolyzed by lipase enzymes in

the stomach? - ✔✔some degree of emulsification


what helps to emulsify dietary fat? - ✔✔- muscle contractions &

squirting of fat via pyloric sphincter

- emulsifiers in stomach


what emulsifiers are found in the stomach? - ✔✔- polysaccharides


- phospholipids

- pepsin


what does the presence of undigested lipid in the stomach do? - ✔✔-

delays rate of emptying

- inhibits gastric motility