Biology
11th Edition
ISBN: 9781259188138
Author: Peter H Raven, George B Johnson Professor, Kenneth A. Mason Dr. Ph.D., Jonathan Losos Dr., Susan Singer
Publisher: McGraw-Hill Education
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Textbook Question
Chapter 47, Problem 7U
Which of the following represents the action of insulin?
a. Increases blood glucose levels by the hydrolysis of glycogen
b. Increases blood glucose levels by stimulating glucagon production
c. Decreases blood glucose levels by forming glycogen
d. Increases blood glucose levels by promoting cellular uptake of glucose
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Students have asked these similar questions
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.
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.
It is noticed that when a strain of mice exercises, their blood glucose drops to very low levels. Which of the following can explain this situation?
a) These mice do not make enough insulin
b) these mice lack insulin receptors on their cells
c)these mice lack glucagon
d) these mice cannot synthesize glycogen from glucose
Chapter 47 Solutions
Biology
Ch. 47 - How is the digestion of fats different from that...Ch. 47 - Although the stomach is normally thought of as the...Ch. 47 - After being absorbed through the intestinal...Ch. 47 - Which of these pairings is incorrect? a. Fat...Ch. 47 - Intestinal microorganisms aid digestion and...Ch. 47 - Prob. 6UCh. 47 - Which of the following represents the action of...Ch. 47 - Prob. 1ACh. 47 - The primary function of the large intestine is to...Ch. 47 - Inactive forms of some molecules are secreted a....
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- 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.arrow_forwardWhich of the following tissues are primary targets of insulin? a. Muscle b. Brain c. Adipose tissue d. Liverarrow_forwardWhich of the following correctly describes the hormone insulin? a. It is produced by B cells in the pancreas. b. It increases glucose uptake by liver and muscle cells. c. It is a peptide hormone. d. It lowers blood glucose levels. e. All of these are correct.arrow_forward
- Which hormone stimulates phosphoprotein phosphatases to dephosphorylate glycogen phosphorylase and glycogen synthase, thus resulting in the formation of more glycogen? A. Cortisol B. Epinephrine C. Glucagon D. Insulinarrow_forwardA scientist hypothesizes that the pancreas’s hormone production is controlled by neural stimuli. Which observation would support this hypothesis? a. Insulin is produced in response to sudden stress without a rise in blood glucose. b. Insulin is produced in response to a rise in glucagon levels. c. Beta cells express epinephrine receptors. d. Insulin is produced in response to a rise in blood glucose in the brain.arrow_forwardWhich of the following concerning glucagon is TRUE? a. It is a hormonal protein that uptakes glucose and amino acids from blood. b. Its activity is up-regulated when blood glucose increases. c. It is a hormonal protein that up-regulates glycogenolysis. d. It decreases gluconeogenesis.arrow_forward
- Which of the following are metabolic fight or flight responses? a. decreased glycolysis in the muscles b. decreased adrenalin : insulin c. increased gluconeogenesis in the liver d. increased glycogen synthesis in the liver e. increased insulin : glucagonarrow_forwardWhich of these statements about the hormone insulin is true? a.It is secreted by alpha cells in the pancreatic islets. b.It is secreted in response to a rise in blood glucose. c.It stimulates the production of glycogen and fat. d.Both a and b are true. e.Both b and c are true.arrow_forwardThe hormone activating the glycogen synthase activity is a. Glucagon b. ACTH c. Epinephrine d. Insulinarrow_forward
- A person forgets to eat breakfast one morning. How would this person's body respond to maintain blood sugar homeostasis? A. The pancreas would release insulin to signal the liver to release stored sugars. B. The pancreas would release glucagon to signal the liver to store blood sugars as glycogen. C. The pancreas would release insulin to signal the liver to store blood sugars as glycogen. D. The pancreas would release glucagon to signal the liver to release stored sugars.arrow_forwardA person diagnosed with type 1 diabetes will exhibit all of the following symptoms except... a) The inability to produce insulin via the pancreas b) Increased blood pH c) The presence of ketone bodies in the urine d) Decreased blood pHarrow_forward
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