Endocrine Structures and Functions
Endocrine Structures and Functions

Endocrine Structures and Functions

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A question pack on the basic structures and functions of the endocrine system. Content courtesy of the Open Learning Initiative.

This content is licensed under the Creative Commons Attribution 3.0 Unported License.

Endocrine Structures and Functions Q1

Which of the following is not a function of the endocrine system?

A

Release chemicals into the bloodstream for distribution throughout the body.

B

Produce quick effects through electrochemical mechanisms.

C

Alter the metabolic activities of many different target tissues and organs.

D

Contribute to homeostatic feedback loops.

Endocrine Structures and Functions Q2
QUESTION TYPE COMING SOON!
Endocrine Structures and Functions Q3

If you had to summarize the function of the endocrine system in one word, what would it be?

A

Development

B

Communication

C

Homeostasis

D

Growth

Endocrine Structures and Functions Q4

Which of the following accurately describes hormones?

A

Are neural messengers

B

Are chemical messengers

C

Elicit a body-wide response from all cell types

D

Circulate indefinitely in the body

Endocrine Structures and Functions Q5

Which of the following hormones is not properly matched with its precursor?

A

Estrogen—Cholesterol

B

Cortisol—Cholesterol

C

Aldosterone—Polyunsaturated fatty acid

D

Prostaglandin—Polyunsaturated fatty acid.

Endocrine Structures and Functions Q6

The catecholamines are one class of tyrosine amine hormones and include:

A

Triiodothyronine

B

Epinephrine

C

Melatonin

D

Thyroxine

Endocrine Structures and Functions Q7

Which of the following is an example of a peptide hormone produced by the hypothalamus and stored in the posterior pituitary?

A

antidiuretic hormone

B

epinephrine

C

insulin

D

follicle-stimulating hormone

Endocrine Structures and Functions Q8

Using the example of childbirth, which letter on this positive feedback loop image would represent the release of the hormone oxytocin?

question description
A

A

B

B

C

C

D

D

E

E

Endocrine Structures and Functions Q9

In this diagram for oxytocin, what type of receptor would be involved in this positive feedback loop?

question description
A

photoreceptor

B

thermoreceptor

C

mechanoreceptor

D

chemoreceptor

Endocrine Structures and Functions Q10

In this diagram for oxytocin, what would be the control center?

question description
A

pancreas

B

cervix

C

pituitary

D

mammary gland

Endocrine Structures and Functions Q11

Elevated levels of cortisol, also known as the “stress hormone”, can inhibit the production of thyroid stimulating hormone from the anterior pituitary. What would be the effect on the production of thyroid hormone by the thyroid gland?

A

stable production of thyroid hormone

B

decreased production of thyroid hormone

C

increased production of thyroid hormone

Endocrine Structures and Functions Q12

The autoimmune Grave’s disease results in antibodies in the blood that bind to thyroid stimulating hormone receptors, mimicking their metabolic effect on the target cell. What would be the effect on the production of thyroid hormone by the thyroid gland?

A

increased production of thyroid hormone

B

decreased production of thyroid hormone

C

stable production of thyroid hormone

Endocrine Structures and Functions Q13

A different autoimmune Hashimoto’s thyroiditis disease results in destruction of thyroid cells by lymphocytes. What would be the effect on the production of thyroid hormone by the thyroid gland?

A

stable production of thyroid hormone

B

decreased production of thyroid hormone

C

increased production of thyroid hormone

Endocrine Structures and Functions Q14

Which method of hormone production is going to help return the body to homeostasis?

A

Negative Feedback

B

Positive Feedback

Endocrine Structures and Functions Q15

Click the correct type of stimuli involved in the feedback homeostatic regulation of hormone production for the following situation:

Involves some kind of chemical stimulating the release of hormone into blood

A

humoral

B

tropic hormonal

C

neural

Endocrine Structures and Functions Q16

Click the correct type of stimuli involved in the feedback homeostatic regulation of hormone production for the following situation:

Would stimulate the quickest release of endocrine hormone.

A

neural

B

humoral

C

tropic hormonal

Endocrine Structures and Functions Q17

Click the correct type of stimuli involved in the feedback homeostatic regulation of hormone production for the following situation:

Would be the slowest to stimulate the release of endocrine hormone.

A

tropic hormonal

B

neural

C

humoral

Endocrine Structures and Functions Q18

Hormones that control the release of another hormone are called?

A

Humor

B

Tropic

C

Trophic

D

Triggers

Endocrine Structures and Functions Q19

What would happen to a body cell that doesn’t have a specific receptor for a specific hormone that is released and circulating in the blood?

A

The cell would decrease its physiological response to that hormone

B

The cell would increase its physiological response to that hormone

C

The cell would not respond to the hormone

Endocrine Structures and Functions Q20

What would happen to a body cell if a specific hormone receptor was completely blocked by another chemical, such as a drug?

A

The cell would increase its physiological response to that hormone

B

The cell would die

C

The cell would not respond to the hormone

Endocrine Structures and Functions Q21

A cell that has a receptor for a specific hormone is called a:

A

Specialized cell

B

Target cell

C

Differentiated cell

D

Endocrine cell

Endocrine Structures and Functions Q22

Which of the following is correctly matched?

A

Steroid hormones bind to an intracellular receptor. Thyroid hormones bind to a plasma membrane receptor.

B

Steroid hormones bind to a cytoplasmic receptor. Thyroid hormones bins to a nuclear receptor.

C

Steroid hormones bind to a plasma membrane receptor. Thyroid hormones bind to an intracellular receptor.

D

Steroid hormones bind to a nuclear receptor. Thyroid hormones bind to a cytoplasmic receptor.

Endocrine Structures and Functions Q23

Peptide hormones must bind to a plasma membrane hormone receptor because:

A

They are nonpolar

B

They are polar

C

They are small

D

They are too big

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This content was produced by the Open Learning Initiative. Unless otherwise noted this work is licensed under a Creative Commons Attribution 3.0 Unported License.