The major site(s) of glycogen storage is/are: A) adipose tissue. OB) liver. OC) skeletal muscle. D) B and C. E) All of the above.
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- Adipose triglyceride lipase (ATGL) hydrolyzes a fatty acyl group from: A) monoacylglycerol. B) diacylglycerol. C) triacylglycerol. D) A and C. E) B and C.The hormone which regulates pH in the intestine is called: a) cholecystokinin b) secretin c) thyroxine d) epinephrine The hormone which signals the release of digestive enzymes is: a) cholecystokinin b) secretin c) thyroxine d) epinephrine Larger peptides are broken to smaller peptides by which enzymes? A) amylases b) peptidases c) chylomicrons d) lipases Amino acids released into intestinal cells are transported into the blood by an antiporter which exchanges the amino acids for which ion? A) Cl- b) K+ c) Na+ d) Ca+2 When alpha amylase digests amylopectin, the final products are: a) glucose and fructose b) maltose and glucose c) maltose and fructose d) maltose and dextrinIn small mammals, including rabbits, excessive loss of muscle is indicative of... a) advanced starvation b) altered metabolic states c) forced inactivity d) all of the above
- Glucagon increases hepatic gluconeogenesis by decreasing the cytosolic concentration of which of the following?A) AMPB) Calcium C) cAMPD) cGMPE) Fructose 2,6-bisphosphateActivation of which of the following enzymes stimulates glycogen synthesis? a) Protein kinase B b) Glycogen synthase kinase 3 c) Both a and b d) Neither a nor bWhat chemical is the structural basis of the bile salts, Vitamin D, and all of the steroid hormones to include estrogen, progesterone, and testosterone? A) Cholesterol B) Arginine C) Glucose D) Acetyl CoA E) Glucose-6-dehydrogenase
- 1) Gluconeogenesis refers to ________. A) the breakdown of glycogen B) the formation of glucose from noncarbohydrate sources C) the formation of glycogen. D) splitting of glucose to pyruvate E) fermentation of glucose to ethanol 3) Glycogenesis refers to ________. A) the breakdown of glycogen B) the formation of glucose from noncarbohydrate sources C) the formation of glycogen D) splitting of glucose to pyruvate E) fermentation of glucose to ethanol 3) Ketosis is a condition that can occur if A) ketone bodies instead of glucose are used for energy. B) too many ketones are ingested. C) too much protein is available in the diet. D) the brain is starved of glucose. E) low fat intake occurs.Serum concentrations of acetoacetate and ß-hydroxybutyrate increase dramatically after a 3-day fast primarily because of the increased rate of which of the following?A) Fatty acid oxidation in liverB) Fatty acid synthesis in liverC) Glycogenolysis in liverD) Glycolysis in skeletal muscleE) Protein degradation in skeletal muscleWhich of the following statements regarding glucose is NOT true? a.)Glucose is a monosaccharide sugar b.)Glucose can be metabolized by both aerobic and anaerobic metabolism c.)The normal blood glucose concentration is 4-7 mmol/l d.)A high blood glucose concentration is called hypoglycemia
- 61. Degradation of glycogen in muscle fails to supply significant amounts of blood glucose because muscle lacks which of the following enzymes? A) Glucose-6-phosphatase B) Glucose-6-phosphate dehydrogenase C) Glycogen phosphorylase D) Phosphoglucomutase E) Phosphorylase kinaseWhich of the following is a source of essential fatty acids that the body cannot produce on its own? a) Saturated fats b) Trans fats c) Monounsaturated fats d) Omega-3 and Omega-6 fatty acidsWhich of the following human cells produce insulin? a) Beta cells b) F cells C) Alpha cells d) Delta cells