Digestion and Absoption

Question 1

What is the primary site of polysaccharide digestion

Answer 1

lumen of intestine

Question 2

what is polysaccharide digestion mediated by

Answer 2

alpha amylase

Question 3

where aer oligosaccharides broken down

Answer 3

brush border

Question 4

what is oligosaccharide breakdown mediated by

Answer 4

lactase, maltase, isomaltase

Question 5

what does SGLT1 transport

Answer 5

glucose and galactose

Question 6

what does GLUT5 transport

Answer 6

fructose

Question 7

what does GLUT2 transport

Answer 7

glucose, galactose, fructose

Question 8

where does protein digestion start

Answer 8

stomach

Question 9

what channels take amino acids/protein

Answer 9

PEPT2, cotransporter with H+

Amino transporter B, cotransproterd with Na+

Question 10

how are lipids digested in the lumen of the stomach

Answer 10

lingual lipase
gastric lipase
emulsification
forming micelles
physical breakdown

Question 11

function fo pancreatic lipase

Answer 11

digestive

Question 12

co-lipase

Answer 12

anchors lipase to emulsfiied fat droplet

Question 13

where do triglycerids, diglycerid, free fatty acid and choelsteral get broken done

Answer 13

lumen of duodenum

Question 14

how is bit B12 absorbed

Answer 14

IF binds to B12 which then binds to IF receptor in the ielum

Question 15

how is Ca__ absorped

Answer 15

Ca++ channel in the duodenum

regulated by vit D

Question 16

how do you absob folic acid

Answer 16

exchange protein expressed on surface of etnerocytes in duodenum

Question 17

what is folic acid important in

Answer 17

DNA synthesis and cell divsion

Question 18

how do you absorb iron

Answer 18

happens in small intesetine

complexes with transferr, receptor mediated interliazation of transferrin-Fe++ complex takin up by DCT1