Starvation, Feeding

Question 1

Only TAG components that contribute to gluconeogenesis

Answer 1

glycerol

propionyl-CoA

Question 2

After 24 hours since last meal, hepatic gluconeogeneis derives glucose from what

Answer 2

lactate
alanine
glycerol
propionyl-CoA

Question 3

When is glycogen depleted and gluconeogenesis fully active?

Answer 3

10-18 hours after meal

Question 4

When does gluconeogenesis become the main source of glucose?

Answer 4

4-6 hours after meal

Question 5

1-3 days of starvation: brain uses predominantly?

Answer 5

glucose

Question 6

Ketone bodies start to be used when

Answer 6

48 hours after last meal

Question 7

Ethanol metabolism produces what?

Depletes what?

Answer 7

Product: acetaldehyde –> acetate
Byproduct: NADH
Depletes: NAD+

Question 8

NAD+ is replenished during ethanol metabolism via:

Answer 8

PLOM
Pyruvate to Lactate conversion
Oxaloacetate to Malate conversion

Question 9

Ketone body used by CNS during periods of starvation

Answer 9

Beta-hydroxybutyrate

Question 10

In alcohol metabolism oxaloacetate is shunted to

Answer 10

malate

Question 11

DKA patient urine test detects which ketone:

Answer 11

acetoacetate ONLY