A G-protein coupled receptor binds its ligand, activation a heterotrimeric G-pro

Question

A G-protein coupled receptor binds its ligand, activation a heterotrimeric G-protein that stimulates a two-fold increase in cAMP. Protein kinase A causes the covalent activation of phosphorylases that have what important result on carbohydrate metabolism?

Select one:

a. Increase glycogen synthesis.

c. Inhibit hexokinase especially in liver and muscle.

d. Activate anaerobic metabolic pathways.

e. Increase blood glucose concentration.

What is a measure of how an enzyme's catalytic activity changes when the concentration of a metabolite (substrate, product, or effector) changes?

Select one:

a. Response coefficient, R

b. Km

d. Elasticity, epsilon

e. The Flux, j

What factor does not affect the distribution of different isozymes?

Select one:

a. Different metabolic patterns in different organs.

b. Different locations and metabolic roles for isozymes in the same cell.

d. Different catabolic abilities using commonly evolved amino acid sequences

e. Different responses of isozymes to allosteric regulation

Explanation / Answer

A G protein coupled bind it's liglands.activation of a heterotrimeric G protein that stimulates two fold increase in CAMP. Protein kinase A causes the covalent activation of phosphorylases that have what important result on carbohydrate metabolism?

Increase blood glucose concentration

What is a measure of how enzyme's catalytic activity changes when the concentration of a metabolite changes?

Km

What does not affect the distribution of different isozymes?

Different catabolic abilities using commonly evolved amino acid sequences

Related Questions

Navigate

• Browse (All)
• Browse A
• Subjects

Integrity-first tutoring: explanations and feedback only — we do not complete graded work. Learn more.