Question 1

What is the role of protein kinases in hormone action?

Accepted Answer

A)   Inhibit synthesis of intracellular mediators
B)   Remove phosphates from other enzymes
C)   Attach phosphates to other enzymes
D)   Open calcium channelsE) A) and B)
F) B) and D)

Question 2

During exercise, what hormones ensure that the brain and skeletal muscles have enough energy?

Accepted Answer

A)   Epinephrine, glucagon, cortisol, growth hormone
B)   Insulin, thyroid hormone, cortisol, epinephrine
C)   Growth hormone, insulin, glucagon, testosterone
D)   Estrogen, testosterone, aldosterone, cortisolE) A) and B)
F) None of the above

Question 3

Hypoparathyroidism causes skeletal muscle tetanus and cramps due to low blood calcium levels.

Accepted Answer

A) True 
 B)False  True

Question 4

What is the function of somatomedins?

Accepted Answer

A)   Stimulating the growth of cartilage, bone and muscle
B)   Increases the production of glucose in the liver
C)   Decreases protein synthesis in muscles
D)   All of the choices are correctE) B) and D)
F) A) and B)

Question 5

What substance stimulates the production and release of thyroid hormone?

Accepted Answer

A)   Growth hormone
B)   Thyroid-stimulating hormone
C)   Insulin
D)   CalciumE) All of the above
F) B) and C)

Question 6

Which endocrine gland in NOT found in the neck or chest?

Accepted Answer

A)   Pineal gland
B)   Parathyroid glands
C)   Thymus
D)   Thyroid glandE) A) and B)
F) B) and D)

Question 7

Which of the following hormones is NOT produced by the anterior pituitary gland?

Accepted Answer

A)   Growth hormone
B)   Thyroid-stimulating hormone
C)   Oxytocin
D)   Follicle-stimulating hormoneE) C) and D)
F) A) and D) C

Question 8

What structure regulates the activity of the pituitary gland?

Accepted Answer

A)   Hypothalamus
B)   Pons
C)   Cerebrum
D)   ThalamusE) A) and C)
F) B) and D)

Question 9

Most persons experience a decrease in the secretion of many hormones as they grow older and may be related to decreased physical activity.

Accepted Answer

A) True 
 B)False

Question 10

The effects of epinephrine and norepinephrine include all of the following except

Accepted Answer

A)   Increased breakdown of glycogen into glucose
B)   Increased heart rate and blood pressure
C)   Increased metabolic rate
D)   Vasodilation of visceral blood vessels and vasoconstriction of heart and skeletal muscle blood vesselsE) A) and B)
F) A) and C)

Question 11

What gland produces melatonin?

Accepted Answer

A)   Anterior pituitary gland
B)   Hypothalamus
C)   Pineal body
D)   Skin glandsE) A) and B)
F) A) and C)

Question 12

Which of the following is NOT a layer of the adrenal cortex?

Accepted Answer

A)   Zona medullary
B)   Zona fasciculata
C)   Zona glomerulosa
D)   Zona reticularisE) A) and D)
F) B) and C)

Question 13

Which of the following hormones is NOT involved with regulating digestive function?

Accepted Answer

A)   Erythropoietin
B)   Gastrin
C)   Secretin
D)   CholecystokininE) All of the above
F) A) and D)

Question 14

Diabetic ketoacidosis includes all of the following except

Accepted Answer

A)   Very acidic blood pH
B)   Excess ketone bodies in the blood
C)   High blood glucose levels
D)   Low glucagon and epinephrine levelsE) None of the above
F) A) and B)

Question 15

Hyperglycemic hyperosmolar state leads to extreme dehydration, particularly of brain cells.

Accepted Answer

A) True 
 B)False

Question 16

Which of the following is NOT true about regulation of thyroid hormone?

Accepted Answer

A)   Stress will increase TRH secretion
B)   Both the hypothalamus and anterior pituitary regulate secretion
C)   Regulation is through negative-feedback mechanisms
D)   Decrease in TSH will decrease thyroid hormone productionE) None of the above
F) B) and D) A

Question 17

A goiter can be caused by both hyperthyroidism and hypothyroidism.

Accepted Answer

A) True 
 B)False

Question 18

What must be bound to the  α\alphaα  subunit of a G protein to activate it?

Accepted Answer

A)   Guanine diphosphate
B)   Guanine triphosphate
C)   Calmodulin
D)   Adenosine triphosphate E) B) and C)
F) A) and B)

Question 19

Eighty percent of adrenal medulla secretions is norepinephrine.

Accepted Answer

A) True 
 B)False

Question 20

Type 1 diabetes mellitus results from

Accepted Answer

A)   Insulin resistance
B)   Pregnancy
C)   Viral infection
D)   Autoimmune destruction of beta cells
E)   Both viral infection and autoimmune destruction of beta cellsF) B) and D)
G) All of the above

Exam 15: Endocrine System

What is the role of protein kinases in hormone action?

Correct AnswerverifiedShow Answer

During exercise, what hormones ensure that the brain and skeletal muscles have enough energy?

Correct AnswerverifiedShow Answer

Hypoparathyroidism causes skeletal muscle tetanus and cramps due to low blood calcium levels.

Correct AnswerverifiedTrue

What is the function of somatomedins?

Correct AnswerverifiedShow Answer

What substance stimulates the production and release of thyroid hormone?

Correct AnswerverifiedShow Answer

Which endocrine gland in NOT found in the neck or chest?

Correct AnswerverifiedShow Answer

Which of the following hormones is NOT produced by the anterior pituitary gland?

Correct AnswerverifiedC

What structure regulates the activity of the pituitary gland?

Correct AnswerverifiedShow Answer

Most persons experience a decrease in the secretion of many hormones as they grow older and may be related to decreased physical activity.

Correct AnswerverifiedShow Answer

The effects of epinephrine and norepinephrine include all of the following except

Correct AnswerverifiedShow Answer

What gland produces melatonin?

Correct AnswerverifiedShow Answer

Which of the following is NOT a layer of the adrenal cortex?

Correct AnswerverifiedShow Answer

Which of the following hormones is NOT involved with regulating digestive function?

Correct AnswerverifiedShow Answer

Diabetic ketoacidosis includes all of the following except

Correct AnswerverifiedShow Answer

Hyperglycemic hyperosmolar state leads to extreme dehydration, particularly of brain cells.

Correct AnswerverifiedShow Answer

Which of the following is NOT true about regulation of thyroid hormone?

Correct AnswerverifiedA

A goiter can be caused by both hyperthyroidism and hypothyroidism.

Correct AnswerverifiedShow Answer

What must be bound to the α\alphaα subunit of a G protein to activate it?

Correct AnswerverifiedShow Answer

Eighty percent of adrenal medulla secretions is norepinephrine.

Correct AnswerverifiedShow Answer

Type 1 diabetes mellitus results from

Correct AnswerverifiedShow Answer

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True

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C

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A

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What must be bound to the $\alpha$ subunit of a G protein to activate it?

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