Question 1

How are hormone levels regulated?

Accepted Answer

A)  An endocrine gland can respond to the blood level of the hormone it produces.
B)  A hormone can trigger a second gland to secrete a hormone that dampens production of the first hormone.
C)  A second contrary hormone can counteract the effect of the first hormone.
D)  A product can trigger hormone production; the hormone can then reduce the amount of product which in turn reduces the level of hormone.
E)  All of the choices are correct.F) B) and D)
G) B) and E)

Question 2

The oversecretion of ________ by the thyroid gland can result in ________.

Accepted Answer

A)  T3; hyperthyroidism
B)  T3; hypothyroidism
C)  T4; hypothyroidism
D)  calcitonin; hyperthyroidism
E)  parathyroid hormone; Graves diseaseF) All of the above
G) C) and D)

Question 3

Which of the following statements about parathyroid hormone (PTH) is NOT correct?

Accepted Answer

A)  Parathyroid hormone promotes the release of calcium from bones.
B)  When blood calcium levels are low,PTH secretion is stimulated.
C)  PTH decreases the activity of osteoclasts.
D)  PTH promotes the reabsorption of calcium by the kidneys.
E)  PTH has the opposite effect of calcitonin.F) A) and E)
G) C) and D)

Question 4

Which of the following characteristics or actions is associated with a steroid hormone?

Accepted Answer

A)  cyclic AMP
B)  the second messenger
C)  production of new proteins
D)  activation of proteins present in an inactive form
E)  binding of a protein to a surface receptor on the plasma membraneF) A) and B)
G) D) and E)

Question 5

Which endocrine gland is directly responsible for the secretion of the glucocorticoid cortisol?

Accepted Answer

A)  adrenal cortex
B)  hypothalamus
C)  adrenal medulla
D)  anterior pituitary
E)  thyroid glandF) All of the above
G) A) and E)

Question 6

________ is considered the first messenger,while ________ is called the second messenger.

Accepted Answer

A)  Insulin; glucagon
B)  ACTH; cortisol
C)  Peptide hormone; cAMP
D)  Glucose; insulin
E)  TSH; thyroxinF) A) and C)
G) A) and E)

Question 7

Explain how ADH works in the body when it is released by the hypothalamus.

Accepted Answer

The hypothalamus releases ADH,which is t...

Question 8

Which is the correct order of hormone secretion in response to inflammation?

Accepted Answer

A)  The hypothalamus stimulates the anterior pituitary to produce ACTH which causes the adrenal cortex to secrete cortisol.
B)  The hypothalamus stimulates the anterior pituitary to produce ACTH which causes the adrenal cortex to secrete aldosterone.
C)  The anterior pituitary stimulates the hypothalamus to produce ACTH which causes the adrenal cortex to secrete cortisol.
D)  The hypothalamus stimulates the anterior pituitary to produce ANH which causes the adrenal cortex to secrete cortisol.
E)  The hypothalamus stimulates the anterior pituitary to produce ANH which causes the adrenal cortex to secrete aldosterone.F) B) and E)
G) A) and E)

Question 9

Hypoparathyroidism leads to a dramatic drop in blood calcium,which causes

Accepted Answer

A)  lethargy and hair loss.
B)  tetany (convulsions) .
C)  sleepiness.
D)  mental retardation.
E)  cretinism.F) B) and D)
G) C) and D)

Question 10

Which of the following mineralocorticoid is responsible for regulating blood volume and pressure?

Accepted Answer

A)  aldosterone
B)  cortisol
C)  T3
D)  T4
E)  calcitoninF) D) and E)
G) B) and E)

Question 11

The target cell concept is illustrated in the picture.Label the cells as either target cells or non-target cells by identifying A and B as such.Explain your answer.

Accepted Answer

A is a nontarget cell and B points to ta...

Question 12

An adolescent female who is hyperactive,nervous,irritable and has eyes that are protruding from their sockets is most likely suffering from ________,which is caused by ________.

Accepted Answer

A)  Graves disease; oversecretion of T3 or T4 due to antibodies that mimic the effect of TSH
B)  Graves disease; undersecretion of T3 or T4 due to antibodies that mimic the effect of TSH
C)  Cushings disease; oversecretion of T3 or T4 due to antibodies that mimic the effect of TSH
D)  Graves disease; oversecretion of T3 or T4 due to antibodies that mimic the effect of calcitonin
E)  Cushings disease; oversecretion of T3 or T4 due to antibodies that mimic the effect of parathyroid hormoneF) B) and C)
G) A) and D)

Question 13

Which of the following statements about steroid hormones is NOT true?

Accepted Answer

A)  Estrogen is a steroid hormone.
B)  Steroid hormones do not bind to cell surface receptors.
C)  The hormone-receptor complex can enter the nucleus.
D)  The hormone-receptor complex can bind to chromatin.
E)  Steroid hormones act faster than non-steroid (peptide) hormones.F) B) and D)
G) A) and E)

Question 14

What gland,located in the brain,produces melatonin?

Accepted Answer

A)  pancreas
B)  pineal gland
C)  adrenal gland
D)  thyroid gland
E)  pituitaryF) C) and D)
G) B) and C)

Question 15

Which of the following hormones is (are) NOT a product of the anterior lobe of the pituitary?

Accepted Answer

A)  growth hormone
B)  antidiuretic hormone
C)  gonadotropic hormones
D)  thyroid-stimulating hormoneE) C) and D)
F) A) and D)

Question 16

If a chemical agent acted to make the nuclear envelope pores impermeable to the passage of hormones,what effect would it have?

Accepted Answer

A)  Neither steroid nor non-steroid hormones would be effective.
B)  Steroid hormones would continue to be effective but non-steroid hormones would be ineffective.
C)  Non-steroid hormones would continue to be effective but steroid hormones would be ineffective.
D)  Both steroid and non-steroid hormones would continue to be effective.E) A) and D)
F) A) and C)

Question 17

Identify and briefly describe the functions of the labeled glands of the human endocrine system.

Accepted Answer

A.thyroid: regulates metabolic rate,grow...

Question 18

Which of the following statements about hormones is NOT true?

Accepted Answer

A)  Hormones are secreted into the bloodstream.
B)  Hormones are released from exocrine glands.
C)  Hormones may be classified as peptides or steroids.
D)  Hormones usually affect a target organ.
E)  Cells that react to a hormone have specific receptors for that hormone.F) None of the above
G) A) and B)

Question 19

A woman with a beard most likely has a malfunctioning

Accepted Answer

A)  pancreas.
B)  pituitary.
C)  adrenal cortex.
D)  adrenal medulla.
E)  thyroid.F) B) and E)
G) All of the above

Question 20

Simple goiter can be prevented by

Accepted Answer

A)  surgery to remove the thyroid gland.
B)  removal of the pituitary.
C)  administration of ACTH.
D)  administration of insulin.
E)  increasing intake of iodine in the diet.F) All of the above
G) B) and C)

Exam 40: Hormones and Endocrine Systems

Which of the following statements about hormones is NOT true?

Correct AnswerverifiedShow Answer

If a chemical agent acted to make the nuclear envelope pores impermeable to the passage of hormones,what effect would it have?

Correct AnswerverifiedShow Answer

Which of the following characteristics or actions is associated with a steroid hormone?

Correct AnswerverifiedShow Answer

Identify and briefly describe the functions of the labeled glands of the human endocrine system.

Correct AnswerverifiedA.thyroid: regulates metabolic rate,grow...View AnswerShow Answer

________ is considered the first messenger,while ________ is called the second messenger.

Correct AnswerverifiedShow Answer

What gland,located in the brain,produces melatonin?

Correct AnswerverifiedShow Answer

Simple goiter can be prevented by

Correct AnswerverifiedShow Answer

Explain how ADH works in the body when it is released by the hypothalamus.

Correct AnswerverifiedThe hypothalamus releases ADH,which is t...View AnswerShow Answer

How are hormone levels regulated?

Correct AnswerverifiedShow Answer

A woman with a beard most likely has a malfunctioning

Correct AnswerverifiedShow Answer

The target cell concept is illustrated in the picture.Label the cells as either target cells or non-target cells by identifying A and B as such.Explain your answer.

Correct AnswerverifiedA is a nontarget cell and B points to ta...View AnswerShow Answer

The oversecretion of ________ by the thyroid gland can result in ________.

Correct AnswerverifiedShow Answer

An adolescent female who is hyperactive,nervous,irritable and has eyes that are protruding from their sockets is most likely suffering from ________,which is caused by ________.

Correct AnswerverifiedShow Answer

Which of the following statements about parathyroid hormone (PTH) is NOT correct?

Correct AnswerverifiedShow Answer

Which is the correct order of hormone secretion in response to inflammation?

Correct AnswerverifiedShow Answer

Which of the following mineralocorticoid is responsible for regulating blood volume and pressure?

Correct AnswerverifiedShow Answer

Which of the following statements about steroid hormones is NOT true?

Correct AnswerverifiedShow Answer

Which endocrine gland is directly responsible for the secretion of the glucocorticoid cortisol?

Correct AnswerverifiedShow Answer

Hypoparathyroidism leads to a dramatic drop in blood calcium,which causes

Correct AnswerverifiedShow Answer

Which of the following hormones is (are) NOT a product of the anterior lobe of the pituitary?

Correct AnswerverifiedShow Answer

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A.thyroid: regulates metabolic rate,grow...
View Answer

is considered the first messenger,while is called the second messenger.

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The hypothalamus releases ADH,which is t...
View Answer

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A is a nontarget cell and B points to ta...
View Answer

The oversecretion of by the thyroid gland can result in .

Correct Answer
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An adolescent female who is hyperactive,nervous,irritable and has eyes that are protruding from their sockets is most likely suffering from ,which is caused by .

Correct Answer
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