Question 1

Prolactin

Accepted Answer

A)  helps development of, and production of milk in the breast. 
B)  causes "milk letdown" from the breasts of lactating women. 
C)  causes contraction of the muscle of the uterus. 
D)  stimulates development of sperm cells in males. 
E)  causes "milk letdown" from the breasts of lactating women and causes contraction of the muscle of the uterus. 
A)  helps development of, and production of milk in the breast. 
B)  causes "milk letdown" from the breasts of lactating women. 
C)  causes contraction of the muscle of the uterus. 
D)  stimulates development of sperm cells in males. 
E)  causes "milk letdown" from the breasts of lactating women and causes contraction of the muscle of the uterus. A

Question 2

The tendency for each type of hormone to bind to one type of receptor and not to others is called

Accepted Answer

A)  agonism. 
B)  antagonism. 
C)  specificity. 
D)  complementarity. 
A)  agonism. 
B)  antagonism. 
C)  specificity. 
D)  complementarity. C

Question 3

Melatonin

Accepted Answer

A)  is secreted by the thymus gland. 
B)  is thought to increase the secretion of releasing hormones from the hypothalamus. 
C)  increases FSH and LH secretion. 
D)  may be controlled by changes in day length. 
E)  has all of these properties. 
A)  is secreted by the thymus gland. 
B)  is thought to increase the secretion of releasing hormones from the hypothalamus. 
C)  increases FSH and LH secretion. 
D)  may be controlled by changes in day length. 
E)  has all of these properties. D

Question 4

__________ are produced in response to hormonal activation of G proteins.

Accepted Answer

A)  primary messengers 
B)  hormones 
C)  secondary messengers 
D)  phermones 
E)  all of the items are correct. 
A)  primary messengers 
B)  hormones 
C)  secondary messengers 
D)  phermones 
E)  all of the items are correct.

Question 5

If blood glucose decreases below normal

Accepted Answer

A)  the nervous system will malfunction. 
B)  the increased breakdown of fats tends to produce metabolic alkalosis. 
C)  large volumes of urine will be produced. 
D)  the heart rate will decrease. 
E)  all of these events will occur. 
A)  the nervous system will malfunction. 
B)  the increased breakdown of fats tends to produce metabolic alkalosis. 
C)  large volumes of urine will be produced. 
D)  the heart rate will decrease. 
E)  all of these events will occur.

Question 6

Oxytocin is secreted by the

Accepted Answer

A)  anterior pituitary gland. 
B)  posterior pituitary gland. 
C)  adrenal cortex. 
D)  adrenal medulla. 
E)  beta cells of the pancreatic islets. 
A)  anterior pituitary gland. 
B)  posterior pituitary gland. 
C)  adrenal cortex. 
D)  adrenal medulla. 
E)  beta cells of the pancreatic islets.

Question 7

Which of these types of hormone molecules are NOT correctly matched with the example or description?

Accepted Answer

A)  protein hormone - anterior pituitary hormones 
B)  protein hormone - prostaglandin-like hormone 
C)  lipid hormone - steroids 
D)  peptide hormone - posterior pituitary hormones 
E)  lipid hormone - hormone that diffuses through the cell membrane 
A)  protein hormone - anterior pituitary hormones 
B)  protein hormone - prostaglandin-like hormone 
C)  lipid hormone - steroids 
D)  peptide hormone - posterior pituitary hormones 
E)  lipid hormone - hormone that diffuses through the cell membrane

Question 8

Parathyroid hormone (PTH)

Accepted Answer

A)  increases calcium level in the blood. 
B)  inhibits the formation of active vitamin D in the kidneys. 
C)  decreases the rate of bone breakdown. 
D)  has an effect similar to that of calcitonin. 
E)  has all of these characteristics. 
A)  increases calcium level in the blood. 
B)  inhibits the formation of active vitamin D in the kidneys. 
C)  decreases the rate of bone breakdown. 
D)  has an effect similar to that of calcitonin. 
E)  has all of these characteristics.

Question 9

The hypothalamus secretes __________, which are classified as _________ hormones, whereby they increase the secretion of an anterior pituitary hormone, or ____________ hormones, whereby they decrease the secretion of an anterior pituitary hormone.

Accepted Answer

A)  hormones, inhibiting, releasing 
B)  regulatory hormones, releasing, transferring 
C)  neurohormones, releasing, inhibitory 
D)  stimulatory hormones, secretory, inhibitory 
A)  hormones, inhibiting, releasing 
B)  regulatory hormones, releasing, transferring 
C)  neurohormones, releasing, inhibitory 
D)  stimulatory hormones, secretory, inhibitory

Question 10

Growth hormone

Accepted Answer

A)  stimulates fat synthesis. 
B)  favors protein breakdown. 
C)  deficiency in an adult can produce pituitary dwarfism. 
D)  excess after growth is complete produces acromegaly. 
E)  deficiency in an adult can produce pituitary dwarfism and excess after growth is complete produces acromegaly are correct. 
A)  stimulates fat synthesis. 
B)  favors protein breakdown. 
C)  deficiency in an adult can produce pituitary dwarfism. 
D)  excess after growth is complete produces acromegaly. 
E)  deficiency in an adult can produce pituitary dwarfism and excess after growth is complete produces acromegaly are correct.

Question 11

___ is inhibited by humoral stimuli.

Accepted Answer

A)  Thyroid stimulating hormone (TSH) 
B)  Glucagon 
C)  Testosterone 
A)  Thyroid stimulating hormone (TSH) 
B)  Glucagon 
C)  Testosterone

Question 12

Hormones alter cellular properties and functions by

Accepted Answer

A)  changing the quantities of enzymes present. 
B)  opening or closing ion channels. 
C)  changing the rate of enzyme breakdown. 
D)  changing the rates of transcription or translation in a cell. 
E)  All of these are true. 
A)  changing the quantities of enzymes present. 
B)  opening or closing ion channels. 
C)  changing the rate of enzyme breakdown. 
D)  changing the rates of transcription or translation in a cell. 
E)  All of these are true.

Question 13

In response to high blood glucose, the pancreas releases insulin to enable glucose to enter body cells. When the blood glucose level returns to normal, insulin release stops. This is an example of regulation by:

Accepted Answer

A)  endocrine dysplasia. 
B)  negative feedback. 
C)  positive feedback. 
D)  neural regulation. 
E)  somatic regulation. 
A)  endocrine dysplasia. 
B)  negative feedback. 
C)  positive feedback. 
D)  neural regulation. 
E)  somatic regulation.

Question 14

Aldosterone

Accepted Answer

A)  causes potassium ions to be retained in the body. 
B)  secretion is stimulated primarily by ACTH. 
C)  secretion increases when blood potassium levels increase. 
D)  causes increased retention of sodium ions and water by the body. 
E)  both increases secretion when blood potassium levels increase and causes increased retention of sodium ions and water by the body. 
A)  causes potassium ions to be retained in the body. 
B)  secretion is stimulated primarily by ACTH. 
C)  secretion increases when blood potassium levels increase. 
D)  causes increased retention of sodium ions and water by the body. 
E)  both increases secretion when blood potassium levels increase and causes increased retention of sodium ions and water by the body.

Question 15

Growth hormone is secreted by the

Accepted Answer

A)  anterior pituitary gland. 
B)  posterior pituitary gland. 
C)  adrenal cortex. 
D)  adrenal medulla. 
E)  beta cells of the pancreatic islets. 
A)  anterior pituitary gland. 
B)  posterior pituitary gland. 
C)  adrenal cortex. 
D)  adrenal medulla. 
E)  beta cells of the pancreatic islets.

Question 16

ACTH stimulates the

Accepted Answer

A)  thyroid gland. 
B)  ovaries and testes. 
C)  hypothalamus. 
D)  adrenal cortex. 
E)  posterior pituitary. 
A)  thyroid gland. 
B)  ovaries and testes. 
C)  hypothalamus. 
D)  adrenal cortex. 
E)  posterior pituitary.

Question 17

Insulin is secreted by the

Accepted Answer

A)  anterior pituitary gland. 
B)  posterior pituitary gland. 
C)  adrenal cortex. 
D)  adrenal medulla. 
E)  beta cells of the pancreatic islets. 
A)  anterior pituitary gland. 
B)  posterior pituitary gland. 
C)  adrenal cortex. 
D)  adrenal medulla. 
E)  beta cells of the pancreatic islets.

Question 18

______________ are released by cells that have effects on other cell types near the cells from which they were released.

Accepted Answer

A)  Pheromones 
B)  Hormones 
C)  Neurotransmitters 
D)  Autocrine agents 
E)  Paracrine agents 
A)  Pheromones 
B)  Hormones 
C)  Neurotransmitters 
D)  Autocrine agents 
E)  Paracrine agents

Question 19

One way that helps maintain fairly constant blood levels of hormones is

Accepted Answer

A)  movement into target organs. 
B)  being bound to binding proteins. 
C)  excretion by the kidneys. 
D)  being broken down by enzymes. 
A)  movement into target organs. 
B)  being bound to binding proteins. 
C)  excretion by the kidneys. 
D)  being broken down by enzymes.

Question 20

A hormone is traditionally described as a molecule that

Accepted Answer

A)  is produced in varying amounts by collections of cells. 
B)  enters interstitial fluid and/or blood and transported some distance. 
C)  acts on specific tissues called target tissues. 
D)  all of the choices are correct. 
A)  is produced in varying amounts by collections of cells. 
B)  enters interstitial fluid and/or blood and transported some distance. 
C)  acts on specific tissues called target tissues. 
D)  all of the choices are correct.

Prolactin

The tendency for each type of hormone to bind to one type of receptor and not to others is called

Melatonin

__________ are produced in response to hormonal activation of G proteins.

If blood glucose decreases below normal

Oxytocin is secreted by the

Which of these types of hormone molecules are NOT correctly matched with the example or description?

Parathyroid hormone (PTH)

The hypothalamus secretes ______, which are classified as _ hormones, whereby they increase the secretion of an anterior pituitary hormone, or ________ hormones, whereby they decrease the secretion of an anterior pituitary hormone.

Growth hormone

___ is inhibited by humoral stimuli.

Hormones alter cellular properties and functions by

In response to high blood glucose, the pancreas releases insulin to enable glucose to enter body cells. When the blood glucose level returns to normal, insulin release stops. This is an example of regulation by:

Aldosterone

Growth hormone is secreted by the

ACTH stimulates the

Insulin is secreted by the

______________ are released by cells that have effects on other cell types near the cells from which they were released.

One way that helps maintain fairly constant blood levels of hormones is

A hormone is traditionally described as a molecule that

The Human Organism

The Chemical Basis of Life

Cell Structures and Their Functions

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Blood

Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters

Exam 10: Endocrine System

Prolactin

The tendency for each type of hormone to bind to one type of receptor and not to others is called

Melatonin

__________ are produced in response to hormonal activation of G proteins.

If blood glucose decreases below normal

Oxytocin is secreted by the

Which of these types of hormone molecules are NOT correctly matched with the example or description?

Parathyroid hormone (PTH)

The hypothalamus secretes __________, which are classified as _________ hormones, whereby they increase the secretion of an anterior pituitary hormone, or ____________ hormones, whereby they decrease the secretion of an anterior pituitary hormone.

Growth hormone

___ is inhibited by humoral stimuli.

Hormones alter cellular properties and functions by

In response to high blood glucose, the pancreas releases insulin to enable glucose to enter body cells. When the blood glucose level returns to normal, insulin release stops. This is an example of regulation by:

Aldosterone

Growth hormone is secreted by the

ACTH stimulates the

Insulin is secreted by the

______________ are released by cells that have effects on other cell types near the cells from which they were released.

One way that helps maintain fairly constant blood levels of hormones is

A hormone is traditionally described as a molecule that

The Human Organism

The Chemical Basis of Life

Cell Structures and Their Functions

Tissuesasis of Life

Integumentary System

Skeletal System: Bones and Joints

Muscular System

Nervous System

Senses

Blood

Heart

Blood Vessels and Circulation

The Lymphatic System and Immunity

Respiratory System

Digestive System

Nutrition, Metabolism, and Body Temperature Regulation

Urinary System and Fluid Balance

Reproductive System

Development, Heredity, and Aging

Filters

The hypothalamus secretes ______, which are classified as _ hormones, whereby they increase the secretion of an anterior pituitary hormone, or ________ hormones, whereby they decrease the secretion of an anterior pituitary hormone.