final exam Tutorial 1

Question 1

what will be the effect of a high concentration of insulin in the blood carbohydrate metabolism?

Answer 1

Increase in the uptake of glucose by the liver cells and increase rate of glycogen synthesis

Question 2

In the urea cycle, how many enzymes contribute to the different steps of the cycle

Answer 2

5

Question 3

Do polyunsaturated fatty acids fully undergo B oxidation ?

Answer 3

yes, but only via the action of specific enzymes

Question 4

where in the body are fats emulsified into micelles

Answer 4

duodenum

Question 5

Glycogen phosphorylase, a key enzyme in glycogen metabolism, catalyzes…

Answer 5

cleavage of ( α 1 → 4 glycosidic linkages

Question 6

What is the total yield of ATP achieved through complete oxidation of 10 molecules of acetyl coA via the TCA cycle ( Including the oxidation of reduced coenzymes)

Answer 6

100

Question 7

Which of the following compounds is a precursor for the synthesis of the amino acid serine

Answer 7

3-phosphoglycerate

Question 8

Acetyl Co-A arising from B oxidation of fatty acids is further metabolized by the reactions in the

Answer 8

TCA Cycle

Question 9

If the catabolism of an amino acid yields fumarate, such amino acid is to be considered

Answer 9

Glucogenic

Question 10

Which of the following lipoproteins is the second largest in size

Answer 10

VDL (Very low density lipoprotein)

Question 11

Which of the following compounds has a role in the regulation of ketogenesis?

Answer 11

Malonyl Co-A

Question 12

Which of the compounds has a key role in the regulation of ketogenesis?

Answer 12

Malonyl Co-A