Electrolyte and H2O absorption in intestine

Question 1

ingesting hypotonic fluid, most water is absorbed ________, Na and Cl abosrbed _______ and ______

Answer 1

duodenum and jejunum

Question 2

what transporters are in jejunum

Answer 2

Na/K, (Na in H out), (Na in Glucose, AA out) H out

Question 3

transporters in ileum

Answer 3

Cl/HCO3-, Na/H (HCO3 out)

Question 4

potassium is primarily absorbed

Answer 4

paracellularly

Question 5

water ______ absorption of K

Answer 5

facilitates

Question 6

BK is stimulated by

Answer 6

bacterial toxins that activate adenyly cyclase, high shear flow

Question 7

calcium absorption is regulated by

Answer 7

TRPV5, TRPV6, calbindin, basolateral Ca pump

Question 8

Ca absorption is stimulated by

Answer 8

1, 25 dihydroxycholecalciferal

Question 9

how and where is zinc absorbed

Answer 9

ileum by specific carrier

Question 10

what is the effect of tannin acid and phytate on Fe absorption

Answer 10

reduces

Question 11

Heme iron utilizes what kind of transport

Answer 11

facilitated

Question 12

non heme utilizes what kind of transport

Answer 12

DMT-1

Question 13

what is the effect of vitamin C on Fe absorption? Ca?

Answer 13

increase, reduce

Question 14

water absorption for hypertonic meals take place in

Answer 14

ileum and colon

Question 15

water absorption for hypotonic meals take place in

Answer 15

jejunum and ileum