Question 1

Which hormone is primarily responsible for stimulating hunger when the stomach is empty?

Accepted Answer

Ghrelin

Question 2

A person eats a meal high in protein and fiber. Which of the following best explains why they feel full for a longer period?

Accepted Answer

Protein and fiber slow gastric emptying, increasing satiety signals.

Question 3

Which region of the brain is primarily responsible for integrating hunger and satiety signals?

Accepted Answer

Hypothalamus

Question 4

If a person is leptin-insensitive, which part of the endocrine signaling system is malfunctioning?

Accepted Answer

The target cell's leptin receptor

Question 5

Which hormone is released by the pancreas in response to high blood glucose levels?

Accepted Answer

Insulin

Question 6

What is the primary effect of cholecystokinin (CCK) after a meal?

Accepted Answer

Promotes satiety and stimulates digestive enzyme release

Question 7

Which of the following best describes the role of nerve cells in hunger regulation?

Accepted Answer

They detect changes in stomach and intestinal pressure to signal hunger or fullness.

Question 8

If a person has not eaten for several hours, which hormones would you expect to be elevated?

Accepted Answer

Glucagon and ghrelin

Question 9

Which hormone is released from fat cells and is involved in long-term regulation of food intake?

Accepted Answer

Leptin

Question 10

A patient with a tumor in the hypothalamus has trouble regulating their appetite. Which function is most likely impaired?

Accepted Answer

Integration of hunger and satiety signals

Question 11

Which of the following is a correct sequence for hormone signaling in the endocrine system?

Accepted Answer

Hormone is released by a gland, travels in the blood, and binds to a receptor in a target cell.

Question 12

Which hormone is most likely to be elevated immediately after a carbohydrate-rich meal?

Accepted Answer

Insulin

Question 13

Which of the following statements is TRUE regarding the effects of leptin on body weight?

Accepted Answer

Leptin decreases appetite and promotes weight loss in individuals with normal sensitivity.

Question 14

Which hormone is released from the small intestine and signals the gall bladder and pancreas to release digestive fluids?

Accepted Answer

Cholecystokinin (CCK)

Question 15

Which of the following best describes the difference between hunger and appetite?

Accepted Answer

Hunger is a physiological drive to eat, while appetite is a psychological desire to eat.

Question 16

Which hormone is released when blood glucose levels are low, stimulating the liver to release glucose?

Accepted Answer

Glucagon

Question 17

A person with leptin insensitivity is likely to:

Accepted Answer

Have difficulty losing weight due to impaired satiety signaling.

Question 18

Which of the following is NOT a hormone involved in hunger or satiety?

Accepted Answer

Cortisol

Question 19

Which of the following best explains why administering leptin is not an effective weight loss treatment for most obese individuals?

Accepted Answer

Obese individuals often have leptin insensitivity, so their bodies do not respond to additional leptin.

Question 20

Which of the following scenarios would most likely result in increased secretion of ghrelin?

Accepted Answer

Skipping breakfast and not eating for 12 hours.

Hunger, Satiety, and Hormones: Regulation of Food Intake

Study Guide - Practice Questions