$$\text{Blood glucose} = \text{Glucose intake} - \text{Glucose utilization}$$

$$\text{Weight gain} = \text{Calories consumed} - \text{Calories expended}$$

Question 1

Which feeding mechanism is illustrated by the animal in the first image, and what is its primary food source?

Accepted Answer

Suspension feeding; primarily feeds on small organisms suspended in water

Question 2

A caterpillar, as shown in the second image, is an example of which feeding mechanism?

Accepted Answer

Substrate feeding

Question 3

The third image shows an insect feeding on another organism. Which feeding mechanism does this represent?

Accepted Answer

Fluid feeding

Question 4

The snake in the fourth image is consuming a large prey item. Which feeding mechanism is this an example of?

Accepted Answer

Bulk feeding

Question 5

Which equation best represents the homeostatic regulation of blood glucose levels in humans?

Accepted Answer

$$	ext{Blood glucose} = 	ext{Glucose intake} - 	ext{Glucose utilization}$$

Question 6

Which hormone is secreted when blood glucose levels rise after eating, and what is its effect?

Accepted Answer

Insulin; decreases blood glucose by promoting glucose uptake

Question 7

Obesity is recognized as a major global health problem. Which of the following is NOT a direct consequence of obesity?

Accepted Answer

Decreased risk of neural tube defects

Question 8

Which hormone is primarily responsible for long-term regulation of body fat storage and appetite?

Accepted Answer

Leptin

Question 9

A person can be obese and still be malnourished. Which scenario best explains this phenomenon?

Accepted Answer

Consuming excess calories but lacking essential nutrients

Question 10

Which of the following is an essential amino acid for adult humans?

Accepted Answer

Methionine

Question 11

Kwashiorkor is a form of malnutrition characterized by:

Accepted Answer

Severe deficiency in protein but adequate calories

Question 12

Which vitamin is added to grain products to reduce the risk of neural tube defects?

Accepted Answer

Folic acid

Question 13

Which stage of food processing involves the uptake of nutrient molecules by body cells?

Accepted Answer

Absorption

Question 14

What is the primary function of the stomach in the digestive system?

Accepted Answer

Storage of food and initiation of protein digestion

Question 15

Which enzyme is secreted in an inactive form and activated by hydrochloric acid in the stomach?

Accepted Answer

Pepsinogen

Question 16

Which organ produces bile, and what is its main function in digestion?

Accepted Answer

Liver; aids in digestion and absorption of fats

Question 17

Which structure in the small intestine increases the surface area for nutrient absorption?

Accepted Answer

Villi and microvilli

Question 18

After absorption in the small intestine, fats are transported as chylomicrons into which vessel?

Accepted Answer

Lacteals (lymphatic vessels)

Question 19

Which equation best describes the relationship between caloric intake and weight gain?

Accepted Answer

$$	ext{Weight gain} = 	ext{Calories consumed} - 	ext{Calories expended}$$

Question 20

Which of the following is a function of the colon (large intestine)?

Accepted Answer

Recovery of water from digestive wastes

Chapter 41: Animal Nutrition – Study Guide

스터디 가이드 - 연습 문제