🧬 Endocrine System – Quiz Questions

Question 1

What is the primary function of the endocrine system?

Answer 1

To regulate bodily functions through hormones.

Question 2

True or False: The endocrine system uses hormones to communicate between organs.

Answer 2

True

Question 3

Which gland is often referred to as the ‘master gland’?

Answer 3

Pituitary gland

Question 4

Fill in the blank: The __________ gland produces insulin.

Answer 4

Pancreas

Question 5

What hormone is responsible for regulating metabolism?

Answer 5

Thyroid hormones (T3 and T4)

Question 6

Multiple Choice: Which of the following hormones is produced by the adrenal glands? A) Insulin B) Cortisol C) Estrogen D) Testosterone

Answer 6

B) Cortisol

Question 7

What hormone is secreted by the pineal gland?

Answer 7

Melatonin

Question 8

True or False: The adrenal medulla produces epinephrine and norepinephrine.

Answer 8

True

Question 9

What is the role of glucagon?

Answer 9

To raise blood glucose levels.

Question 10

Fill in the blank: The __________ regulates the body’s response to stress.

Answer 10

Adrenal gland

Question 11

Which hormone promotes water reabsorption in the kidneys?

Answer 11

Antidiuretic hormone (ADH)

Question 12

Multiple Choice: Which hormone is involved in the regulation of the menstrual cycle? A) Progesterone B) Insulin C) Cortisol D) Thyroxine

Answer 12

A) Progesterone

Question 13

What is the function of the thyroid-stimulating hormone (TSH)?

Answer 13

To stimulate the thyroid gland to produce thyroid hormones.

Question 14

True or False: The pancreas functions as both an endocrine and exocrine gland.

Answer 14

True

Question 15

What type of hormones are steroids?

Answer 15

Lipid-soluble hormones.

Question 16

Fill in the blank: The __________ is responsible for regulating blood calcium levels.

Answer 16

Parathyroid hormone

Question 17

Which hormone is primarily responsible for the fight-or-flight response?

Answer 17

Epinephrine

Question 18

Multiple Choice: Which organ is NOT part of the endocrine system? A) Liver B) Thyroid C) Pancreas D) Spleen

Answer 18

D) Spleen

Question 19

What is the effect of insulin on blood glucose levels?

Answer 19

It lowers blood glucose levels.

Question 20

True or False: Hormones can only affect cells that have specific receptors for them.

Answer 20

True

Question 21

What does the term ‘homeostasis’ refer to?

Answer 21

The maintenance of a stable internal environment.

Question 22

Fill in the blank: The __________ secretes hormones that regulate the immune response.

Answer 22

Thymus

Question 23

Which hormone is produced by the ovaries?

Answer 23

Estrogen

Question 24

Multiple Choice: What is the primary effect of cortisol? A) Increase blood glucose B) Decrease heart rate C) Promote digestion D) Increase bone density

Answer 24

A) Increase blood glucose

Question 25

What is the role of oxytocin?

Answer 25

To stimulate uterine contractions during childbirth.

Question 26

True or False: The hypothalamus is part of the nervous system.

Answer 26

True

Question 27

What hormone is released in response to low blood sugar?

Answer 27

Glucagon

Question 28

Fill in the blank: The __________ regulates metabolism and energy levels.

Answer 28

Thyroid gland

Question 29

Which gland produces testosterone?

Answer 29

Testes

Question 30

Multiple Choice: Which hormone is involved in water balance? A) Insulin B) Aldosterone C) Thyroxine D) Growth hormone

Answer 30

B) Aldosterone

Question 31

What is the function of luteinizing hormone (LH)?

Answer 31

To trigger ovulation and stimulate testosterone production.

Question 32

True or False: The endocrine system can respond more slowly than the nervous system.

Answer 32

True

Question 33

What is the primary function of the thymus gland?

Answer 33

To produce hormones that regulate immune system development.

Question 34

Fill in the blank: The __________ is responsible for the production of growth hormone.

Answer 34

Pituitary gland

Question 35

Which hormone is associated with the body's circadian rhythms?

Answer 35

Melatonin

Question 36

Multiple Choice: Which of the following hormones increases blood pressure? A) Insulin B) Adrenaline C) Estrogen D) Progesterone

Answer 36

B) Adrenaline

Question 37

What is the role of the hypothalamus in the endocrine system?

Answer 37

To regulate the pituitary gland and control hormonal output.

Question 38

True or False: Hormones can have multiple effects on different types of cells.

Answer 38

True

Question 39

What is the primary role of parathyroid hormone?

Answer 39

To regulate calcium levels in the blood.

Question 40

Fill in the blank: The __________ gland is responsible for producing adrenaline.

Answer 40

Adrenal

Question 41

Which hormone is involved in the regulation of blood sugar levels?

Answer 41

Insulin

Question 42

Multiple Choice: What is the primary function of aldosterone? A) Increase potassium excretion B) Decrease blood pressure C) Increase glucose uptake D) Promote digestion

Answer 42

A) Increase potassium excretion

Question 43

What is the effect of thyroid hormones on the body?

Answer 43

They increase metabolic rate.

Question 44

True or False: The endocrine system works only through chemical signals.

Answer 44

True

Question 45

What is the function of the corpus luteum?

Answer 45

To produce progesterone after ovulation.