Which of the following statements concerning insulin is NOT true? a. Insulin can increase glycogen synthesis. O b. It is secreted by the beta cell of pancreas. O c. The presence of insulin can increase glucose uptake. O d. O e. Glucose in blood can up-regulate its secretion. Insulin can increase gluconeogenesis.
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- Figure 37.11 Pancreatic tumors may cause excess secretion of glucagon. Type I diabetes results from the failure of the pancreas to produce insulin. Which of the following statement about these two conditions is true? A pancreatic tumor and type I diabetes will have the opposite effects on blood sugar levels. A pancreatic tumor and type I diabetes will both cause hyperglycemia. A pancreatic tumor and type I diabetes will both cause hypoglycemia. Both pancreatic tumors and type I diabetes result in the inability of cells to take up glucose.The hormone insulin enhances the transport of glucose (sugar) from the blood into most body cells. Its secretion is controlled by a negative-feedback system between the concentration of glucose in the blood and the insulin-secreting cells. Therefore, which of the following statements is correct? A decrease in blood glucose concentration stimulates insulin secretion, which in turn further towers blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn lowers blood glucose concentration. A decrease in blood glucose concentration stimulates insulin secretion, which in turn increases blood glucose concentration. An increase in blood glucose concentration stimulates insulin secretion, which in turn further increases blood glucose concentration. None of the preceding is correct.Which of the following statements concerning insulin is NOT true? a. Insulin can increase glycogen synthesis. b. The presence of insulin can increase glucose uptake. c. Insulin can increase the secretion of epinephrine. d. It is secreted by the beta cell of pancreas. e. Glucose in blood can up-regulate the secretion of insulin.
- Which of the following statements about insulin istrue?a. Insulin acts as a transport protein, carryingglucose across the cell membrane.b. Insulin facilitates the movement of intracellularglucose transporters to the cell membrane.c. Insulin stimulates the breakdown of storedglycogen into glucose.d. Insulin stimulates the kidneys to reabsorbglucose into the bloodstreamWhich of the following statements about insulin is true? a. Insulin acts as a transport protein, cany in g glucose across the cell membrane. b. Insulin facilitates the movement of inti acellular glucose transporters to the cell membrane. c. Insulin stimulates the breakdown of stored glycogen into glucose. d. Insulin stimulates the kidneys to reabsorb glucose into the bloodstream.Insulin therapy has all of the following effects, except:A. Increases concentration of free fatty acids in blood plasma B. Stimulates glucose uptake by tissuesC. Inhibits lipolysisD. Activates protein synthesis
- All of the following increase insulin secretion/production EXCEPT: Select one or more: a. Increased intracellular Ca²+ levels O b. Acetylcholine O C. Ghrelin O d. High carbohydrate meal e. Incretins O f. SometostatinWhich of the following is FALSE about Insulin? O Zinc plays a role in the synthesis, storage, and secretion of insulin and binds insulin in the hexameric form. O Type 2 diabetes patients are resistant to the effects of Insulin. O Animal-sourced insulin (taken from the pancreases of pigs) is currently the largest and safest source of insulin production. O Lispro insulin is fast acting because it is mutated to prevent dimerization.All of the following medications are types of insulin, except:A. Aspart (Novolog)B. Glargine (Lantus)C. Lispro (Humalog)D. Glulisin (Apidra)E. Exenatide (Byetta)
- The insulin that does not have a peak of action is:A. Glulisin (Apidra)B. Glargine (Lantus)C. Isophane (Protaphane)D. Biphasic Insulin N 70/30E. Aspart (Novolog)Which of the following statements is true about the well-fed state? O a. Liver glycogen is synthesized from polymerization of glucose. b. Mobilization of triacylglycerols from adipose provides fatty acids to be oxidized and precursors for ketone bodies. O C. Insulin decreases. d. Glucagon and epinephrine increase. O e. Synthesis of proteins and fat is inhibited.Which of the following statements about insulin is not true? a. The insulin receptor has tyrosine kinase activity. b. Insulin increases fat synthesis in adipose cells. c. Insulin increases glycogen synthesis d. Insulin increases gluconeogenesis reactions.
