$$\text{Glucose} + 2 \text{ADP} + 2 \text{P}_i \rightarrow 2 \text{Pyruvate} + 2 \text{ATP} + 2 \text{NADH}$$

$$\text{BMR} = \frac{\text{Energy expenditure}}{\text{Time}}$$

Question 1

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

Accepted Answer

Catabolism breaks down complex molecules to release energy, while anabolism uses energy to build complex molecules from simpler ones.

Question 2

During aerobic metabolism, which phase directly produces the greatest number of ATP molecules?

Accepted Answer

Oxidative phosphorylation

Question 3

A patient with a deficiency in pancreatic lipase would most likely experience difficulty digesting which type of nutrient?

Accepted Answer

Lipids

Question 4

Which of the following statements about the nutrient pool is correct?

Accepted Answer

It is the source of nutrients available for cellular metabolism throughout the body.

Question 5

Which equation correctly represents the net ATP yield from glycolysis per molecule of glucose?

Accepted Answer

$$	ext{Glucose} + 2 	ext{ADP} + 2 	ext{P}_i ightarrow 2 	ext{Pyruvate} + 2 	ext{ATP} + 2 	ext{NADH}$$

Question 6

Which of the following best describes the role of bile salts in lipid digestion?

Accepted Answer

They emulsify lipids, increasing surface area for enzyme action.

Question 7

A person with impaired chylomicron formation would most likely have difficulty absorbing which nutrient?

Accepted Answer

Fat-soluble vitamins

Question 8

Which of the following is TRUE regarding the absorption of monosaccharides in the small intestine?

Accepted Answer

Monosaccharides are absorbed via active transport and facilitated diffusion.

Question 9

Which lipoprotein is responsible for transporting cholesterol from peripheral tissues back to the liver?

Accepted Answer

HDL

Question 10

Lipolysis and lipogenesis are opposing metabolic processes. Which statement correctly describes their functions?

Accepted Answer

Lipolysis breaks down triglycerides into fatty acids and glycerol, while lipogenesis synthesizes triglycerides from fatty acids and glycerol.

Question 11

Which enzyme is primarily responsible for the initial chemical digestion of proteins in the stomach?

Accepted Answer

Pepsin

Question 12

During the postabsorptive state, which of the following processes is most likely to occur?

Accepted Answer

Gluconeogenesis in the liver

Question 13

Which of the following best defines a balanced diet?

Accepted Answer

A diet that provides all essential nutrients in appropriate proportions to maintain health.

Question 14

Which equation correctly represents Basal Metabolic Rate (BMR)?

Accepted Answer

$$	ext{BMR} = \frac{	ext{Energy expenditure}}{	ext{Time}}$$

Question 15

Which of the following is a property of water-soluble vitamins?

Accepted Answer

They are easily excreted in urine.

Question 16

A patient presents with symptoms of malnutrition despite consuming adequate calories. Which of the following is the most likely explanation?

Accepted Answer

The patient is lacking essential nutrients such as vitamins or minerals.

Question 17

Which center in the hypothalamus is responsible for stimulating hunger?

Accepted Answer

Feeding center

Question 18

Short-term appetite control is primarily regulated by which of the following?

Accepted Answer

Stretch receptors in the stomach and hormones such as ghrelin and CCK

Question 19

Which of the following best describes the process of oxidative phosphorylation?

Accepted Answer

It is the process where ATP is generated using energy from electrons transferred through the electron transport chain.

Question 20

Which of the following nutrients is NOT directly used as a substrate for ATP production in cellular metabolism?

Accepted Answer

Minerals

Metabolism, Nutrition, and Energetics – Study Guide Guidance

Study Guide - Practice Questions