Question 1

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

Accepted Answer

Hunger is a physiological need for food, while appetite is a psychological desire for specific foods.

Question 2

Which hormone is released from adipose tissue to suppress hunger?

Accepted Answer

Leptin

Question 3

A patient is experiencing a physiological need for food but reports no appetite. Which of the following is the most likely explanation?

Accepted Answer

Side effect of medication or illness

Question 4

Which of the following foods would have the highest satiety value?

Accepted Answer

High-fat foods

Question 5

Which process is primarily responsible for the mechanical breakdown of food in the mouth?

Accepted Answer

Chewing (mastication)

Question 6

Which enzyme is responsible for the breakdown of starch in the mouth?

Accepted Answer

Amylase

Question 7

What is the primary function of bile released from the gallbladder?

Accepted Answer

Emulsification of fats

Question 8

Which of the following best explains why high-fiber foods promote a sense of satiety?

Accepted Answer

Fiber slows gastric emptying and increases stomach distension, signaling fullness to the brain.

Question 9

Which of the following is NOT a function of the hypothalamus in regulating eating behavior?

Accepted Answer

Releasing digestive enzymes into the stomach

Question 10

A person consumes a meal high in fat and fiber. Which of the following best describes the expected effect on satiety?

Accepted Answer

The person will experience increased satiety due to slower digestion and greater stomach distension.

Question 11

Which hormone is released from the small intestine in response to fat and protein, and promotes satiety?

Accepted Answer

Cholecystokinin (CCK)

Question 12

Which of the following equations best represents the process of protein denaturation by stomach acid?

Accepted Answer

$$\mathrm{Protein} + \mathrm{HCl} \rightarrow \mathrm{Denatured\ Protein}$$

Question 13

Which of the following is a correct sequence of events in the digestive process?

Accepted Answer

Chewing → Peristalsis → Enzyme secretion → Absorption

Question 14

Which of the following best explains why environmental cues can trigger appetite even in the absence of hunger?

Accepted Answer

Environmental cues activate psychological desire for specific foods, independent of physiological need.

Question 15

Which of the following is a plausible outcome if the satiety center in the hypothalamus is damaged?

Accepted Answer

The individual may have difficulty recognizing fullness and may overeat.

Question 16

Which of the following statements about the role of nerve cells in the GI tract is correct?

Accepted Answer

Nerve cells in the mouth, pharynx, and esophagus relay information about chewing and swallowing to the satiety center.

Question 17

Which of the following is most likely to increase the urge to eat hyper-palatable foods?

Accepted Answer

Psychological appetite triggered by environmental cues

Question 18

Which of the following is a correct description of the role of glucagon in the body?

Accepted Answer

Glucagon is a pancreatic hormone that helps maintain blood glucose levels.

Question 19

Which of the following best describes the effect of consuming semisolid foods compared to solid foods on satiety?

Accepted Answer

Solid foods tend to be more satiating and filling than semisolid foods.

Human Body: Are We Really What We Eat? – Nutrition and Digestion Study Notes

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