Question 1

Which type of hormone is most likely to have a short half-life in plasma?

Accepted Answer

Amine-derived hormones (Catecholamines)

Question 2

A patient is experiencing symptoms of Cushing syndrome, including weight gain and increased risk of infection. Which hormone is most likely in excess?

Accepted Answer

Cortisol

Question 3

Which of the following hormones is released from the parent cell via exocytosis?

Accepted Answer

Peptide hormones and Catecholamines

Question 4

The half-life of a hormone is defined as:

Accepted Answer

The time it takes for the hormone to lose half of its physiological activity

Question 5

Which gland is responsible for the production of corticotropin-releasing hormone (CRH)?

Accepted Answer

Hypothalamus

Question 6

Which of the following is the correct sequence for the HPA axis response to stress?

Accepted Answer

Hypothalamus releases CRH, pituitary releases ACTH, adrenal cortex releases cortisol

Question 7

A patient with Addison disease is likely to have which of the following hormonal imbalances?

Accepted Answer

Deficiency of cortisol

Question 8

Which of the following best describes the negative feedback mechanism in the HPA axis?

Accepted Answer

Cortisol inhibits the release of CRH and ACTH

Question 9

If a patient’s blood glucose is too high after a meal, which hormone is secreted by the pancreas to restore homeostasis?

Accepted Answer

Insulin

Question 10

Which of the following is NOT a function of cortisol?

Accepted Answer

Promotes inflammation

Question 11

A patient with Type 1 diabetes mellitus is unable to produce enough insulin. Which of the following is the most likely cause?

Accepted Answer

Destruction of insulin-producing cells in the pancreas

Question 12

Which of the following hormones is classified as a steroid?

Accepted Answer

Cortisol

Question 13

Which of the following is TRUE regarding the transport of steroid hormones in the blood?

Accepted Answer

They are bound to carrier proteins

Question 14

Which of the following is a correct pairing of hormone and its classification?

Accepted Answer

Cortisol – Steroid

Question 15

Which of the following statements about the HPA axis is correct?

Accepted Answer

It involves the hypothalamus, pituitary, and adrenal glands

Question 16

Which hormone is responsible for promoting gluconeogenesis during stress?

Accepted Answer

Cortisol

Question 17

Which of the following is a correct description of the action of insulin?

Accepted Answer

Promotes the uptake of glucose by body cells

Question 18

Which of the following is a correct statement about peptide hormones?

Accepted Answer

They are made in advance and stored in secretory vesicles

Question 19

Which of the following is a correct statement about catecholamines?

Accepted Answer

They are made in advance and stored in secretory vesicles

Question 20

Which of the following best explains why steroid hormones have a longer half-life than peptide hormones?

Accepted Answer

Steroid hormones are bound to carrier proteins, protecting them from rapid degradation

Endocrine System Physiology: Hormones, Glands, and Stress Response (BIOL 3204 Midterm 2 Revision)

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