Which one of the following statements is INCORRECT? Question 5Select one:a.During exercise or fasting, inhibition of the pyruvate dehydrogenase enzyme allows us to burn fat while preserving our limited carbohydrate reserves.b.Insulin can inhibit ketogenesis by inhibiting the carnitine carrier protein located on the mitochondrial membrane.c.In adipocytes, insulin signalling allows excess acetyl CoA to leave the mitochondria to enter the lipogenesis pathwayd.The enzyme glucose-6-phosphatase (G6Pase) in skeletal muscle cells allows the cell to produce glucose for export into the bloodstream during hypoglycaemia.e.Insulin promotes the insertion of the GLUT4 transporter protein into the cell membrane through the phosphatidylinositol (PI) pathway.

Which one of the following statements is INCORRECT? Question 16Select one:a.Insulin stimulates the production of glycogen synthase enzyme, which favours glycogenesis in hepatocytes.b.Peptidase enzymes in the enterocyte cytoplasm degrade absorbed peptides into amino acids.c.Lipid storage ceases during fasting because there are minimal levels of insulin in the blood to synthesise lipoprotein lipase enzymed.The insulin receptor is a tyrosine kinase receptor that is comprised of 4 subunits: 2 membrane-spanning alpha subunits, and 2 insulin-binding beta subunits.e.Glucose enters the liver via the GLUT2 transporter, which is active regardless of the presence of insulin.

Choose roles of insulin in energy balance.Multiple select question.inhibits lipolysis in fat cellspromotes glucose and fatty acid uptakeinhibits adipogenesis (production of new fat cells)promotes triglyceride synthesis in the liver

Which one of the following statements is INCORRECT about the events that occur when glucose enters a hepatocyteQuestion 14Select one:a.Insulin inhibits lipolysis.b.Glucose enters the hepatocyte through the GLUT2 transporter protein.c.Excess acetyl CoA can enter the lipogenesis pathway.d.Insulin receptor activation inhibits enzymes that allow glucose oxidation through glycolysis and the Kreb’s cycle.e.Glucose is converted into glucose-6-phosphate (G6P), glucose-1-phosphate (G1P), then glycogen because insulin receptor activity activates glucokinase and glycogen synthase enzymes, respectively.

Which one of the following statements is INCORRECT regarding the process of lipolysis in adipocytes and fat oxidation in target cells?Question 17Select one:a.Hormone-sensitive lipase (HSL) enzyme breaks down triglycerides into their free fatty acid (FFA) and glycerol components.b.Liberated FFAs enter the Krebs cycle as acetyl CoA through beta oxidation.c.Epinephrine is released during high blood glucose levels to trigger lipogenesis in adipocytes.d.Beta oxidation involves cutting two carbon fragments from the end of the FFA chain.e.Liberated glycerol enters the glycolysis pathway as glyceraldehyde-3-phosphate (G3P).

In cases of brief caloric restriction (i.e,, <24 hours of fasting), which of the following physiological responses would result? a. Inhibition of hepatic glycogenolysis b. Decreased gluconeogensis in the skeletal muscle c. Decreased pancreatic secretion of glucagon into the blood d. Increased activity of gluconeogenesis in the liver e. Increased skeletal muscle glycogenolysis.  f. Increased glycogen synthase activity in the liver