Problem:

Question 1: Acetyl CoA carboxylase is regulated in all of the following ways except:

A.) Stimulation by citrate

B.) Post translation phosphorylation

C.) Allosteric inhibition by palmitoyl CoA

D.) Proteolytic cleavage

Question 2: Which of the following will reduce the activity of HMGCoA reductase?

A.) Allosteric inhibition by AcetylCoA

B.) AMPK mediated dephosphorylation

C.) Ubiquitination in response to sterol accumulation

D.) Serine phosphorylation by an insulin-activated protein kinase

Question 3: Which of the following statements correctly describes the reaction catalyzied by the enzyme CEPT (cholesterol ester transferase protein)?

A.) The enzyme transfers triacylglyerols from VLDL in exchange for cholesterol esters from LDL

B.) The enzyme transfers triacylglyerols from LDL in exchange for cholesterol esters from HDL

C.) The enzyme transfers triacylglyerols from VLDL in exchange for cholesterol esters from chylomicrons

D.) The enzyme transfers triacylglyerols from VLDL in exchange for cholesterol esters from HDL

Provide the correct answer and justification for your choice.