Q: Which of the following equations best represents the relationship between energy, catabolism, and anabolism?

$$\text{Catabolism} \rightarrow \text{Energy release}$$

Question 1

Which gland is responsible for producing melatonin and exhibits a diurnal (daily) cycle, peaking at night?

Accepted Answer

Pineal gland

Question 2

A patient presents with low metabolic rate, feeling cold, constipation, dry skin, and mental sluggishness. Which endocrine disorder is most likely responsible for these symptoms?

Accepted Answer

Hyposecretion of thyroid hormone

Question 3

Which of the following best describes the function of the parathyroid hormone (PTH)?

Accepted Answer

Regulates calcium, phosphorus, and magnesium in bones and blood

Question 4

Which gland is both an endocrine and exocrine organ, producing digestive enzymes as well as hormones that regulate blood sugar?

Accepted Answer

Pancreas

Question 5

A person with hypersecretion of thyroid hormone is likely to experience which of the following symptoms?

Accepted Answer

Sweating, rapid heartbeat, and weight loss

Question 6

Which hormone is primarily responsible for regulating the basal metabolic rate (BMR) and body heat production?

Accepted Answer

Thyroid hormone

Question 7

In the hypothalamic-pituitary-thyroid axis, what is the correct sequence of hormone release?

Accepted Answer

TRH → TSH → Thyroid hormone

Question 8

Which of the following best describes the difference between catabolism and anabolism?

Accepted Answer

Catabolism breaks down molecules and releases energy; anabolism builds larger molecules from smaller ones.

Question 9

A patient has a tumor in the anterior pituitary gland. Which of the following hormones might be directly affected?

Accepted Answer

Thyroid-stimulating hormone (TSH)

Question 10

Which of the following is a correct statement about target cells in the endocrine system?

Accepted Answer

Target cells respond only to specific hormones for which they have receptors.

Question 11

A patient with damage to the adrenal glands may have difficulty regulating which of the following?

Accepted Answer

Blood sugar, blood pressure, and response to stress

Question 12

Which of the following best explains why the thymus is more prominent in infants than in adults?

Accepted Answer

It is involved in the development of T lymphocytes and the immune response, which is most active in early life.

Question 13

Which of the following equations best represents the relationship between energy, catabolism, and anabolism?

Accepted Answer

$$	ext{Catabolism} ightarrow 	ext{Energy release}$$

Question 14

A patient with a deficiency in insulin production is most likely to experience which of the following conditions?

Accepted Answer

Diabetes mellitus

Question 15

Which of the following best describes the role of the hypothalamus in the endocrine system?

Accepted Answer

It acts as a major control center, linking the nervous and endocrine systems.

Question 16

If a person’s thyroid gland is removed, which of the following changes would you expect in their basal metabolic rate (BMR)?

Accepted Answer

BMR would decrease significantly.

Question 17

Which hormone is secreted by the parathyroid glands and is essential for regulating blood calcium levels?

Accepted Answer

Parathyroid hormone (PTH)

Question 18

A male patient is experiencing delayed puberty and low sperm production. Which gland is most likely underactive?

Accepted Answer

Testes

Question 19

Which of the following best describes the difference between secretion and excretion in glandular function?

Accepted Answer

Secretion involves the release of substances for use in the body; excretion involves the removal of waste products.

Question 20

Which of the following is a correct real-life example of negative feedback in the endocrine system?

Accepted Answer

Increased blood glucose stimulates insulin release, which lowers blood glucose, reducing insulin secretion.

The Endocrine System and Metabolism: Structure, Function, and Disorders

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