[Recalls] Physio Ch 44 45

Question 1

Initiates digestion of lipids except:

Answer 1

colipase

Question 2

Present in core droplets except:

Answer 2

cholesterol

Question 3

Differentials small and large intestine:

Answer 3

villi

Question 4

Greatest secretion in the body:

Answer 4

gastric secretion (2 L/day)

Question 5

Solely secreted by colon:

Answer 5

Potassium

Question 6

Intestinal fluid movement is always coupled to solute movement, and sometimes solute movement is:

Answer 6

coupled to fluid movement by solvent drag

Question 7

Absorption of jejunum is greater in ileum due to:

Answer 7

lower transepithelial voltage, larger pore size of tight jxn (leakiness)

Question 8

False in enac:

Answer 8

inhibited by millimolar amiloride

Question 9

Defective Cl channels (CFTR), electrolytes lost in stool:

Answer 9

AOTA (k, na, hco3, h20)

Question 10

Oligopeptides preliminary digestion:

Answer 10

cystosolic enzymes

Question 11

Celiac sprue

Answer 11

fat malabsorption

Question 12

True about GLUT2 except:

Answer 12

not similar with rbc, fibroblast and adipocytes

Question 13

Lactase deficiency:

Answer 13

normal rise after glucose ingestion, increase H2 in breath

Question 14

SGLT1

Answer 14

glucose and galactose

Question 15

Release of single amino acids

Answer 15

carboxypeptidase A

Question 16

Kinetic advantage: accelerated peptide absorption

Answer 16

TRUE

Question 17

True in hartnup and cystinuria except:

Answer 17

NO EXCEPTION

• associated w/ small intestine and renal tubule abnormalities
• hartnup: neutral aa
• cystinuria: cationic aa
• absorption of oligopeptides with neutral or cationic aa is normal in both dse

Question 18

Predominating dietary lipids:

Answer 18

TAG

Question 19

Lipid digestion is completed in:

Answer 19

proximal small intestine

Question 20

First barrier crossed by lipolytic product:

Answer 20

mucus gel layer

Question 21

Celiac disease cx

Answer 21

• ingestion of gluten
• autoimmmune
• absence of villous surface epithelial cells leading to decreased nutrient absorption

Question 22

1-25, dehydroxy vit D most important effect:

Answer 22

enchances 2nd step (increase calbindin synthesis)

Question 23

Nonheme iron enters apical thru:

Answer 23

DMT1 ( divalent metal cotransporter)

Question 24

Minerals and vitamins:

Answer 24

not energy sources

Question 25

core of droplet

Answer 25

except cholesterol bol

Question 26

false of ENaC:

Answer 26

inhibited by millimolar amiloride

Question 27

diarrhea:

Answer 27

metabolic acidosis, secretion of bicarbonate in both small and large intestine

Question 28

alpha 1-4 and more alpha 1-6 makes it more highly branched polysacch:

Answer 28

glycogen

Question 29

increase secretion something:

Answer 29

histamine?

Question 30

bicarbonate-induced sodium absorption in the

Answer 30

proximal small intestine

Question 31

absorption of dipeptides and tripeptides smth2x mediated by

Answer 31

hydrogen cotransporter

Question 32

lipid digestion completed in the -

Answer 32

proximal small intestine

Question 33

Not true about lipid mechanical digestion

Answer 33

decrease surface area to volume ratio

Question 34

Gastric secretion-

Answer 34

largest amount na add on sa git fluid

Question 35

Quotes

Answer 35

Thomas Edison

Question 36

Not true about ENaC

Answer 36

blocked by millimolar amiloride (micromolar)

Question 37

Stool

Answer 37

hypertonic

Question 38

Secretory diarrhea, increased chloride secretion followed by:

Answer 38

Sodium, Bicarbonate, Water, K

Question 39

Na absorption after a meal

Answer 39

Na/Glucose, Na/Amino acid cotransport