The Endocrine System: Interactive Learning Quizzes for Sixth Form Biology

Question 1

Which endocrine gland synthesizes and secretes growth hormone?

Accepted Answer

Pituitary gland

Answer

Adrenal gland

Answer

Thyroid gland

Answer

Pancreas

Question 2

Which type of feedback mechanism occurs when the product of a reaction inhibits the production of the reactants?

Accepted Answer

Negative feedback

Answer

Positive feedback

Answer

Linear feedback

Answer

Delayed feedback

Question 3

Which hormone is responsible for the development of masculine characteristics in males?

Accepted Answer

Testosterone

Answer

Estrogen

Answer

Prolactin

Answer

Glucocorticoid

Question 4

Which disorder is caused by excessive production of growth hormone in adults?

Accepted Answer

Acromegaly

Answer

Dwarfism

Answer

Cushing's syndrome

Answer

Addison's disease

Question 5

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

Accepted Answer

Synthesize proteins

Answer

Regulate body temperature

Answer

Control metabolism

Answer

Maintain blood glucose levels

Question 6

Which hormone is produced by the pituitary gland and stimulates bone and muscle growth in children?

Accepted Answer

Growth hormone

Answer

Insulin

Answer

Adrenaline

Answer

Thyroxine

Question 7

Which gland secretes hormones that regulate the body's metabolic rate?

Accepted Answer

Thyroid gland

Answer

Adrenal glands

Answer

Pancreas

Answer

Pituitary gland

Question 8

Which hormone is responsible for regulating blood sugar levels?

Accepted Answer

Insulin

Answer

Estrogen

Answer

Adrenaline

Answer

Cortisol

Question 9

Which of the following is a symptom of hypothyroidism?

Accepted Answer

Weight gain and fatigue

Answer

Increased heart rate

Answer

Muscle cramps

Answer

Sweating

Question 10

Which gland is responsible for secreting sex hormones?

Accepted Answer

Gonads

Answer

Pituitary gland

Answer

Adrenal glands

Answer

Pancreas

Question 11

Which hormone is **not** released by the pancreas to regulate blood glucose levels?

Accepted Answer

Adrenaline

Answer

Insulin

Answer

Glucagon

Answer

Somatostatin

Question 12

Which hormone is secreted by the pituitary gland and stimulates the release of growth hormone?

Accepted Answer

Growth hormone-releasing hormone (GHRH)

Answer

Insulin

Answer

Glucagon

Answer

Thyroxine

Question 13

Which hormone is primarily responsible for regulating blood glucose levels?

Accepted Answer

Insulin

Answer

Glucagon

Answer

Adrenaline

Answer

Thyroid hormone

Question 14

Which gland secretes hormones essential for the menstrual cycle?

Accepted Answer

Ovaries

Answer

Pituitary gland

Answer

Adrenal glands

Answer

Pancreas

Question 15

Which hormone promotes the release of calcium from bone tissue?

Accepted Answer

Parathyroid hormone

Answer

Calcitonin

Answer

Insulin

Answer

Glucagon

Question 16

Which hormone acts to lower blood glucose levels by promoting glucose uptake into cells?

Accepted Answer

Insulin

Answer

Glucagon

Answer

Estrogen

Answer

Testosterone

Question 17

The pituitary gland is referred to as the 'master gland' primarily because it:

Accepted Answer

Secretes hormones that stimulate or inhibit the function of other endocrine glands

Answer

Produces hormones that directly target and affect specific organs

Answer

Controls feedback mechanisms within the endocrine system

Answer

Releases all hormones necessary for bodily functions

Question 18

Which hormone is responsible for triggering the development of secondary sexual characteristics and reproductive organs?

Accepted Answer

Testosterone

Answer

FSH

Answer

LH

Answer

Progesterone

Question 19

Which endocrine gland is located in the neck and is responsible for regulating metabolism?

Accepted Answer

Thyroid

Answer

Pancreas

Answer

Adrenal glands

Answer

Gonads

Question 20

The hormone that triggers the release of milk from mammary glands is:

Accepted Answer

Prolactin

Answer

Oxytocin

Answer

Estrogen

Answer

Progesterone

Question 21

Which of the following is NOT a function of the adrenal glands?

Accepted Answer

Metabolizing glucose

Answer

Responding to stress

Answer

Regulating blood pressure

Answer

Modulating the immune system

Question 22

Which hormone stimulates the breakdown of glycogen in the liver, releasing glucose into the bloodstream?

Accepted Answer

Glucagon

Answer

Insulin

Answer

Adrenaline

Answer

Thyroxine

Question 23

Which endocrine disorder is characterized by overactivity of the thyroid gland?

Accepted Answer

Grave's disease

Answer

Addison's disease

Answer

Cushing's syndrome

Answer

Diabetes insipidus

Question 24

The release of hormones from the hypothalamus is regulated by:

Accepted Answer

A combination of all three

Answer

Neural signals

Answer

Hormonal signals

Answer

Environmental cues

Question 25

Which of the following is NOT a type of endocrine gland?

Accepted Answer

Sweat gland

Answer

Pituitary gland

Answer

Adrenal gland

Answer

Thyroid gland

Question 26

Which hormone is responsible for regulating blood sugar levels?

Accepted Answer

Insulin

Answer

Epinephrine

Answer

Thyroxine

Answer

Testosterone

Question 27

What is the role of negative feedback mechanisms in the endocrine system?

Accepted Answer

To maintain homeostasis by counteracting changes in hormone levels

Answer

To stimulate further hormone release

Answer

To prevent overproduction of hormones

Answer

To initiate hormone release

Question 28

What is the primary function of the hypothalamus in the endocrine system?

Accepted Answer

Hormone regulation

Answer

Hormone production

Answer

Hormone release

Answer

Hormone transport

Question 29

Which gland is responsible for producing the growth hormone?

Accepted Answer

Pituitary gland

Answer

Adrenal gland

Answer

Thyroid gland

Answer

Pancreas

Question 30

Which hormone is involved in regulating the body's response to stress?

Accepted Answer

Adrenaline

Answer

Insulin

Answer

Estrogen

Answer

Progesterone

Question 31

What is the significance of the adrenal glands in the endocrine system?

Accepted Answer

They produce hormones involved in the 'fight or flight' response.

Answer

They regulate blood pressure and electrolyte balance.

Answer

They control growth and development.

Answer

They produce the majority of the body's hormones.

Question 32

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

Accepted Answer

Producing antibodies

Answer

Maintaining homeostasis

Answer

Regulating metabolism

Answer

Controlling reproduction

Question 33

Which hormone, produced by the pituitary gland, stimulates the adrenal cortex to release cortisol?

Accepted Answer

Adrenocorticotrophic hormone (ACTH)

Answer

Thyroid-stimulating hormone (TSH)

Answer

Follicle-stimulating hormone (FSH)

Answer

Luteinizing hormone (LH)

Question 34

Which hormone plays a crucial role in regulating calcium levels in the blood?

Accepted Answer

Parathyroid hormone (PTH)

Answer

Calcitonin

Answer

Aldosterone

Answer

Estrogen

Question 35

Which gland is widely recognized as the 'master gland' of the endocrine system?

Accepted Answer

Pituitary gland

Answer

Thyroid gland

Answer

Adrenal gland

Answer

Pancreas

Question 36

Which type of feedback mechanism occurs when the end product of a pathway inhibits its own production, thereby maintaining a stable internal environment?

Accepted Answer

Negative feedback

Answer

Positive feedback

Answer

Autonomous feedback

Answer

Paracrine feedback

Question 37

Which endocrine gland is responsible for regulating various vital functions, including body temperature, heart rate, and blood pressure?

Accepted Answer

Hypothalamus

Answer

Thyroid gland

Answer

Pancreas

Answer

Ovaries

Question 38

Which hormone is essential for the development and maintenance of female reproductive characteristics?

Accepted Answer

Estrogen

Answer

Progesterone

Answer

Testosterone

Answer

Prolactin

Question 39

Which gland is responsible for secreting melatonin, a hormone that plays a crucial role in regulating sleep-wake cycles?

Accepted Answer

Pineal gland

Answer

Thymus gland

Answer

Pituitary gland

Answer

Adrenal gland

Question 40

Which endocrine disorder is characterized by excessive production of growth hormone during adulthood, leading to abnormal growth patterns and physical changes?

Accepted Answer

Acromegaly

Answer

Gigantism

Answer

Dwarfism

Answer

Cushing's syndrome

Question 41

When the adrenal glands release epinephrine, which system does it primarily interact with to prepare the body for a quick response?

Accepted Answer

Nervous system

Answer

Digestive system

Answer

Immune system

Answer

Reproductive system

Question 42

Which of the following is **NOT** a major endocrine gland?

Accepted Answer

Liver

Answer

Adrenal glands

Answer

Pituitary gland

Answer

Thyroid gland

Question 43

Which hormone is primarily responsible for regulating blood glucose levels?

Accepted Answer

Insulin

Answer

Thyroxine

Answer

Prolactin

Answer

Epinephrine

Question 44

The adrenal glands are known to secrete which hormone that prepares the body for a 'fight or flight' response?

Accepted Answer

Epinephrine

Answer

Testosterone

Answer

Insulin

Answer

Thyroxine

Question 45

Which part of the brain acts as the master gland of the endocrine system?

Accepted Answer

Hypothalamus

Answer

Thyroid gland

Answer

Pituitary gland

Answer

Adrenal glands

Question 46

Which of the following hormones is **NOT** involved in regulating growth and development?

Accepted Answer

Insulin

Answer

Growth hormone

Answer

Estrogen

Answer

Thyroxine

Question 47

Which endocrine disorder is characterized by an excessive production of thyroid hormones?

Accepted Answer

Hyperthyroidism

Answer

Diabetes mellitus

Answer

Hypothyroidism

Answer

Cushing's syndrome

Question 48

Which of the following is a primary function of the endocrine system?

Accepted Answer

Maintaining homeostasis

Answer

Contraction of muscles

Answer

Digestion of food

Answer

Transport of oxygen

Question 49

Which hormone is responsible for regulating the sleep-wake cycle?

Accepted Answer

Melatonin

Answer

Testosterone

Answer

Cortisol

Answer

Epinephrine

Question 50

Which type of feedback mechanism occurs when the hormone inhibits its own secretion?

Accepted Answer

Negative feedback

Answer

Lateral feedback

Answer

Positive feedback