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Multiple Choice Quiz
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1

In response to binding of a peptide hormone to its receptor
A)adenylate cyclase is activated.
B)the adrenal grand is stimulated to secrete adrenaline.
C)serotonin is released from the cell.
D)the organism's temperature increases.
E)the organism's heartbeat slows.
2

In response to binding with insulin its receptor
A)changes shape.
B)loses the ability to sense glucose concentration.
C)gains the ability to sense glucose concentration.
D)binds with additional peptide receptors.
E)none of the above
3

Melanocyte-stimulating hormone
A)causes color changes in the skin of reptiles.
B)stimulates muscle growth.
C)stimulates production of testosterone by male gonads.
D)eventually stimulates oxidative respiration.
4

Luteinizing hormone
A)causes color changes in the skin of reptiles.
B)stimulates muscle growth.
C)stimulates production of testosterone by male gonads.
D)eventually stimulates oxidative respiration.
5

Thyroid-stimulating hormone
A)causes color changes in the skin of reptiles.
B)stimulates muscle growth.
C)stimulates production of testosterone by male gonads.
D)eventually stimulates oxidative respiration.
6

Somatotropin
A)causes color changes in the skin of reptiles.
B)stimulates muscle growth.
C)stimulates production of testosterone by male gonads.
D)eventually stimulates oxidative respiration.
7

90% of diabetics suffer from type I diabetes.
A)true
B)false
8

In type II diabetes the number of insulin receptors is high.
A)true
B)false
9

Epinephrine is produced by _________ while cortisol is a product of the _________.
A)kidney, adrenal gland
B)medulla, cortex
C)cortex, medulla
D)adrenal gland, kidney
E)thyroid, adrenal gland
10

Which of the following has an effect on calcium regulation?
A)calcitonin
B)parathyroid hormone
C)parathyroid hormone
D)all of the above
E)only a and b
11

An entomologist is conducting research on a species of butterfly native to New York state. She wants to determine how to stimulate the butterfly to more quickly enter the larval stage so she can determine how many calories are consumed at that point in the insect's life cycle. She should be able to achieve her goal by administering
A)molting hormone.
B)melatonin.
C)juvenile hormone.
D)epinephrine.
E)a combination of molting hormone and epinephrine.
12

Hormones
A)are relatively unstable and work only in the area adjacent to the gland that produced them.
B)are stable, long-lasting chemicals released from glands.
C)typically act at a site that is distant from where it was produced.
D)are all lipid-soluble.
E)both b and c
13

Glands that are enclosed by tissue are called
A)internal glands.
B)protected glands.
C)endocrine glands.
D)pseudoglands.
E)none of the above
14

The central nervous system issues commands to the body's organs by means of
A)the motor nervous system.
B)the endocrine system.
C)electrical impulses only.
D)both a and b
E)none of the above
15

How can a target cell recognize a particular hormone and not respond to other hormones?
A)Target cells respond to whatever hormone is present in the largest concentration.
B)The target cells are always located close to the source of the hormone, making it easy to respond to that hormone.
C)Protein receptors located on the surface of the target cell or in the cytoplasm match the hormone.
D)Carbohydrate tags on the surface of the target cell match the hormone.
E)The hormone is only able to enter membrane channels on the correct target cell.
16

An example of a steroid hormone that influences secondary sexual characteristics is
A)cortisone.
B)prolactin.
C)follicle-stimulating hormone.
D)cyclic AMP.
E)testosterone.
17

The steroid hormones bind to
A)protein receptors in the cytoplasm of the target cell.
B)protein receptors on the surface of the target cell.
C)carbohydrate receptors in the cytoplasm of the target cell.
D)carbohydrate receptors on the surface of the target cells.
E)both a and c
18

Low blood calcium levels cause the parathyroid gland to
A)increase in size to form a goiter.
B)stimulate the release of calcium from the bones.
C)release insulin.
D)produce additional quantities of PTH.
E)none of the above
19

Individuals with diabetes mellitus
A)are unable to take up glucose from the blood.
B)are unable to break down glucose.
C)require additional insulin to break down glucose.
D)are twice as likely as nondiabetics to have a heart attack.
E)cannot consume glucose in their diet.
20

Individuals with type I diabetes
A)have an autoimmune disease in which the islets of Langerhans are attacked.
B)are allergic to insulin.
C)have an abnormally low number of insulin receptors on target cells.
D)often die before five years of age.
E)both a and b
21

Individuals with type II diabetes
A)have an autoimmune disease in which the islets of Langerhans are attacked.
B)are allergic to insulin.
C)have an abnormally low number of insulin receptors on target cells.
D)often die before five years of age.
E)both a and b





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