Insulin dependent glucose uptake occurs in which of sites

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Reference no: EM133675186

Questions

1. Which of the following is an example of positive mass balance?

A. non-exercising male on a mixed diet of 800 calories.

B. non-exercising female on a high sodium diet of 2000 calories

C. professional athlete on a high protein diet of 2000 calories.

D. lactating mother on a 1500 calorie diet with little or no intake of milk.

2. Insulin dependent glucose uptake occurs in which of the following sites?

A. kidney

B. brain

C. cardiac muscle

D. skeletal muscle

E. B and C

3. Use the following case for questions 3-6. Jane, a 23 year old female, presents with complaints of a 15 lb weight loss and periodic episodes of weakness 2 hours after eating. On examination you find her blood pressure is 120/80. Her laboratory data shows fasting hyperglycemia (glucose, 200 mg/dl). You suspect an endocrine pathology and request an RIA for the hormone _____.

A. thyroid hormone

B. growth hormone

C. cortisol

D. insulin

E. glucagon

4. Jane's laboratory results (Q3 above) confirm this hormone is absent. You administer an oral glucose tolerance test. Her glucose tolerance test fails (400 mg/dL at 4 hours post ingestion) . You would classify this endocrine pathology as ______.

A. primary, adenocortical insufficiency.

B. primary, pancreatic islet insufficiency.

C. secondary, liver insufficiency.

D. secondary, pituitary insufficiency.

5. What other hormone would you expect to be elevated in Jane's plasma because of the absence of a negative feedback?

A. Growth hormone

B. Adrenocorticotrophin (ACTH)

C. Glucagon

D. Insulin

6. Which of the following hormones is catabolic in its action?

A. cortisol

B. insulin and glucagon

C. insulin

D. glucagon

E. cortisol and glucagon

7. During the fed state, nervous tissue derives most of its metabolic energy from:

A. fatty acids

B. amino acids

C. ketones

D. glucose

8. During the fasting state, most of the circulating glucose is due to the _____which breaks down glycogen to glucose.

A. stomach

B. pancreas

C. skeletal muscle

D. liver

9. Which of the following hormones stimulates lipolysis (break down of fat)?

A. insulin like growth factor 1

B. insulin

C. epinephrine

D. aldosterone

10. Epinephrine acts in a synergistic manner to regulate blood levels of glucose by inhibiting:

A. insulin secretion

B. aldosterone secretion

C. cortisol secretion

D. glucagon secretion

11. A patient with diabetic ketoacidosis hyperventilates because____.

A. insulin inhibits the respiratory center.

B. elevated glucose stimulates the thirst and respiratory centers.

C. elevated plasma H+ concentration stimulates respiratory centers.

D. increased extracellular volume stimulates bicarbonate reabsorption in the kidney.

12. At the end of a strenuous workout lasting 3 hours, John's blood glucose levels were 70 mg/dL. Which of the following hormones would be increased in his blood at this time?

A. cortisol, growth hormone, and epinephrine

B. cortisol and growth hormone

C. cortisol

D. epinephrine

E. growth hormone

Reference no: EM133675186

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