Endocrine 2

Question 1

The gland located in the brain that is involved in the sleep/wake cycle is the

Answer 1

pineal gland.

Question 2

Insulin is synthesized by the beta cells of the pancreas. This hormone is released

Answer 2

when the body’s glucose level rises

Question 3

The posterior pituitary secretes

Answer 3

oxytocin

Question 4

Which hormone is released in response to low blood sugar?

Answer 4

Glucagon

Question 5

Which hormone produced in inadequate (too little) amounts directly results in low metabolism rates, mental and physical sluggishness, and fatigue?

Answer 5

Thyroxine

Question 6

The hormone that causes the kidneys to reduce water loss is

a. FSH
b. ACTH
c. ADH
d. TSH

Answer 6

c. ADH

Question 7

The initial (first) response to stress is called the
A. resistance stage.
B. exhaustion stage. 
C. amplification phase. 
D. alarm reaction.

Answer 7

D. alarm reaction.

Question 8

TRUE or FALSE. Stress is defined as any situation that upsets homeostasis and threatens one’s physical or emotional well-being.

Answer 8

TRUE

Question 9

The resistance stage in the general adaptation syndrome (stress response) is dominated by:
A. cortisol.
B. epinephrine. 
C. Norepinephrine. 
D. angiotensin.

Answer 9

A. cortisol.

Question 10

Place the steps in the correct order:
Hydrophilic hormone binds receptor on outside of plasma membrane.
G protein activates adeylate cyclase Adenylate cyclase activated cAMP cAMP activates protein kinases
G protein is activated

Answer 10

1. Hydrophilic hormone binds receptor on outside of plasma membrane.
2. G protein is activated
3. G protein activates adeylate cyclase
4. Adenylate cyclase activated cAMP
5. cAMP activates protein kinases

Question 11

Hydrophobic hormones

Answer 11

bind to receptors in the nucleus of their target cells..

Question 12

Which of the following enters a target cell's nucleus and acts directly on the genes?
A. Insulin
B. Estrogen 
C. Oxytocin
D. Antidiuretic hormone

Answer 12

B. Estrogen

Question 13

TRUE or FALSE Exercise triggers the stress response.

Answer 13

TRUE

Question 14

The alarm reaction is mediated mainly by

Answer 14

norepinephrine and epinephrine.

Question 15

The hormone that directly stimulates the development of female sex organs and secondary sexual characteristics is

Answer 15

estrogen.

Question 16

What is the target organ for ACTH?

Answer 16

Adrenal gland

Question 17

Which of the following hormones increases your heart rate?
A. Insulin
B. Epinephrine
C. Calcitonin 
D. Aldosterone

Answer 17

B. Epinephrine

Question 18

Which hormone produced in inadequate (too little) amounts directly results in low metabolism rates, mental and physical sluggishness, and fatigue?

Answer 18

Thyroxine

Question 19

TRUE or FALSE. The endocrine system reacts more slowly to stimuli, often taking seconds to days.

Answer 19

TRUE

Question 20

The endocrine system is comprised of \_\_\_\_\_\_\_\_\_\_ that secrete hormones.
A. glands
B. cells 
C. hormones
D. All of the choices are correct

Answer 20

D. All of the choices are correct

Question 21

Sometimes prolonged excessive exposure to high hormone concentrations causes:
A. down regulation.
B. diabetes mellitus. 
C. up regulation. 
D. amplification.

Answer 21

A. down regulation.

Question 22

Endocrine glands have ___ and secrete ____.

Answer 22

no ducts/ hormones

Question 23

TRUE or FALSE. The endocrine system stops quickly when stimulus stops.

Answer 23

FALSE

Question 24

Taking care of a sick child is an example of

Answer 24

distress.

Question 25

The hormone that promotes egg development in ovaries and sperm development in testes is

Answer 25

FSH