Question 1

Cortisol

Accepted Answer

A)  increases the permeability of capillary walls. 
B)  increases the permeability of lysosomal membranes. 
C)  stimulates the production of glucose from noncarbohydrates. 
D)  promotes the storage of amino acids in the form of proteins. 
A)  increases the permeability of capillary walls. 
B)  increases the permeability of lysosomal membranes. 
C)  stimulates the production of glucose from noncarbohydrates. 
D)  promotes the storage of amino acids in the form of proteins. C

Question 2

The thalamus controls secretion of pituitary hormones.

Accepted Answer

A) True 
 B)False  False

Question 3

Irving, who is 78 years old, takes human growth hormone supplements to regain the strength of his youth. He may be disappointed, because the hormone has been shown only to

Accepted Answer

A)  increase the red blood cell supply. 
B)  decrease fat and increase muscle mass, but not improve strength. 
C)  make him urinate more often. 
D)  increase his risk of cancer. 
A)  increase the red blood cell supply. 
B)  decrease fat and increase muscle mass, but not improve strength. 
C)  make him urinate more often. 
D)  increase his risk of cancer. B

Question 4

_______ secretions affect the cell that secretes them.

Accepted Answer

The answer of _______ secretions affect the cell that secretes...

Question 5

As a result of the general stress response, blood concentrations of epinephrine

Accepted Answer

A)  rise and cortisol fall. 
B)  fall and cortisol rise. 
C)  and cortisol rise. 
D)  and cortisol fall. 
A)  rise and cortisol fall. 
B)  fall and cortisol rise. 
C)  and cortisol rise. 
D)  and cortisol fall.

Question 6

The extrafollicular cells of the thyroid gland secrete calcitonin.

Accepted Answer

A) True 
 B)False

Question 7

A person who is stressed usually has increased

Accepted Answer

A)  activity of the spleen and other lymphatic organs. 
B)  number of lymphocytes in the blood. 
C)  resistance to infections. 
D)  blood pressure. 
A)  activity of the spleen and other lymphatic organs. 
B)  number of lymphocytes in the blood. 
C)  resistance to infections. 
D)  blood pressure.

Question 8

Athletes abuse erythropoietin (EPO) because this hormone

Accepted Answer

A)  decreases the number of red blood cells. 
B)  increases the number of white blood cells. 
C)  increases the number of red blood cells. 
D)  adds protein to plasma. 
A)  decreases the number of red blood cells. 
B)  increases the number of white blood cells. 
C)  increases the number of red blood cells. 
D)  adds protein to plasma.

Question 9

The sex hormones from the adrenal cortex are primarily androgens.

Accepted Answer

A) True 
 B)False

Question 10

The blood concentration of growth hormone

Accepted Answer

A)  rises in females after menopause. 
B)  varies greatly in males during adulthood. 
C)  drops at puberty and rises after adolescence. 
D)  rises at puberty and levels off after adolescence. 
A)  rises in females after menopause. 
B)  varies greatly in males during adulthood. 
C)  drops at puberty and rises after adolescence. 
D)  rises at puberty and levels off after adolescence.

Question 11

A steroid hormone acts on a target cell by

Accepted Answer

A)  causing a second messenger to be formed. 
B)  causing the cell to divide. 
C)  promoting phagocytosis. 
D)  directly causing protein synthesis. 
A)  causing a second messenger to be formed. 
B)  causing the cell to divide. 
C)  promoting phagocytosis. 
D)  directly causing protein synthesis.

Question 12

Cells of the adrenal medulla are closely associated with preganglionic fibers of the parasympathetic division of the autonomic nervous system.

Accepted Answer

A) True 
 B)False

Question 13

A nonsteroid hormone acts on a target cell by

Accepted Answer

A)  causing synthesis of a second messenger. 
B)  stimulating cell division. 
C)  promoting phagocytosis. 
D)  directly causing protein synthesis. 
A)  causing synthesis of a second messenger. 
B)  stimulating cell division. 
C)  promoting phagocytosis. 
D)  directly causing protein synthesis.

Question 14

Pheromones differ from hormones in that

Accepted Answer

A)  they are only found in plants and fungi. 
B)  they act only within an individual. 
C)  they are transmitted between members of the same species. 
D)  they are transmitted between members of different species. 
A)  they are only found in plants and fungi. 
B)  they act only within an individual. 
C)  they are transmitted between members of the same species. 
D)  they are transmitted between members of different species.

Question 15

The specificity of hormone action derives from

Accepted Answer

A)  target cell receptors that are unique for each hormone. 
B)  target cell receptors that are unique for all steroid hormones. 
C)  target cell receptors that are unique for all nonsteroid hormones. 
D)  target cell receptors that bind only certain neurotransmitters. 
A)  target cell receptors that are unique for each hormone. 
B)  target cell receptors that are unique for all steroid hormones. 
C)  target cell receptors that are unique for all nonsteroid hormones. 
D)  target cell receptors that bind only certain neurotransmitters.

Question 16

Nonsteroid hormones cause _________________ in their target cells.

Accepted Answer

A)  cyclic AMP to become ATP 
B)  cyclic AMP to be decomposed 
C)  activation of adenylate cyclase 
D)  inactivation of adenylate cyclase 
A)  cyclic AMP to become ATP 
B)  cyclic AMP to be decomposed 
C)  activation of adenylate cyclase 
D)  inactivation of adenylate cyclase

Question 17

One of the hallmarks of Graves disease is

Accepted Answer

A)  weight gain. 
B)  increased thirst. 
C)  decreased appetite. 
D)  goiter. 
A)  weight gain. 
B)  increased thirst. 
C)  decreased appetite. 
D)  goiter.

Question 18

Diabetes insipidus is caused by

Accepted Answer

A)  insulin deficiency. 
B)  excess insulin. 
C)  ADH deficiency. 
D)  excess ADH. 
A)  insulin deficiency. 
B)  excess insulin. 
C)  ADH deficiency. 
D)  excess ADH.

Question 19

In diabetes mellitus,

Accepted Answer

A)  fatty acids and ketone bodies accumulate in the blood if untreated. 
B)  insulin must be taken or drugs given that help the body to utilize insulin. 
C)  the pancreas cannot produce insulin or the body cannot respond to it. 
D)  all of the above. 
A)  fatty acids and ketone bodies accumulate in the blood if untreated. 
B)  insulin must be taken or drugs given that help the body to utilize insulin. 
C)  the pancreas cannot produce insulin or the body cannot respond to it. 
D)  all of the above.

Question 20

Adenylate cyclase causes ATP molecules to become ______ _______ molecules.

Accepted Answer

The answer of Adenylate cyclase causes ATP molecules to become...

Exam 13: Endocrine System

Cortisol

The thalamus controls secretion of pituitary hormones.

Irving, who is 78 years old, takes human growth hormone supplements to regain the strength of his youth. He may be disappointed, because the hormone has been shown only to

_______ secretions affect the cell that secretes them.

As a result of the general stress response, blood concentrations of epinephrine

The extrafollicular cells of the thyroid gland secrete calcitonin.

A person who is stressed usually has increased

Athletes abuse erythropoietin (EPO) because this hormone

The sex hormones from the adrenal cortex are primarily androgens.

The blood concentration of growth hormone

A steroid hormone acts on a target cell by

Cells of the adrenal medulla are closely associated with preganglionic fibers of the parasympathetic division of the autonomic nervous system.

A nonsteroid hormone acts on a target cell by

Pheromones differ from hormones in that

The specificity of hormone action derives from

Nonsteroid hormones cause _________________ in their target cells.

One of the hallmarks of Graves disease is

Diabetes insipidus is caused by

In diabetes mellitus,

Adenylate cyclase causes ATP molecules to become ______ _______ molecules.

Introduction to Human Anatomy and Physiology

Chemical Basis of Life

Cells

Cellular Metabolism

Tissues

Integumentary System

Skeletal System

Joints of the Skeletal System

Muscular System

Nervous System I: Basic Structure and Function

Nervous System II: Division of the Nervous System

Nervous System III: Senses

Blood

Cardiovascular System

Lymphatic System and Immunity

Digestive System

Nutrition and Metabolism

Respiratory System

Urinary System

Water, Electrolyte, and Acid-Based Balance

Reproductive Systems

Pregnancy, Growth, and Development

Genetics and Genomics

Filters

Adenylate cyclase causes ATP molecules to become _ molecules.