Chapter 24: Endocrine Functions of the Pancreas & Regulation of Carbohydrate Metabolism

Chapter 24. Endocrine Functions of the Pancreas & Regulation of Carbohydrate Metabolism

Which of the following are incorrectly paired?

A. B cells: insulin

B. D cells: somatostatin

C. A cells: glucagons

D. Pancreatic exocrine cells: chymotrypsinogen

E. F cells: gastrin

Which of the following are incorrectly paired?

A. Epinephrine: increased glycogenolysis in skeletal muscle

B. Insulin: increased protein synthesis

C. Glucagon: increased gluconeogenesis

D. Progesterone: increased plasma glucose level

E. Growth hormone: increased plasma glucose level

Which of the following would be least likely to be seen 14 days after a rat is injected with a drug that kills all of its pancreatic B cells?

A. A rise in the plasma H⁺ concentration

B. A rise in the plasma glucagon concentration

C. A fall in the plasma HCO₃^– concentration

D. A fall in the plasma amino acid concentration

E. A rise in plasma osmolality

When the plasma glucose concentration falls to low levels, a number of different hormones help combat the hypoglycemia. After intravenous administration of a large dose of insulin, the return of a low blood sugar level to normal is delayed in

A. adrenal medullary insufficiency.

B. glucagon deficiency.

C. combined adrenal medullary insufficiency and glucagon deficiency.

D. thyrotoxicosis.

E. acromegaly.

Insulin increases the entry of glucose into

A. all tissues.

B. renal tubular cells.

C. the mucosa of the small intestine.

D. most neurons in the cerebral cortex.

E. skeletal muscle.

Glucagon increases glycogenolysis in liver cells but ACTH does not because

A. cortisol increases the plasma glucose level.

B. liver cells have an adenylyl cyclase ...