Question 1

Which of the following best describes the primary function of mitochondria in a human cell?

Accepted Answer

Production of ATP through cellular respiration

Question 2

Metabolism encompasses all chemical reactions in the body. Which equation best represents the relationship between catabolism and anabolism?

Accepted Answer

Catabolism $$+$$ Anabolism $$=$$ Metabolism

Question 3

A patient is fasting and their body needs to maintain blood glucose levels. Which process is most likely to be activated?

Accepted Answer

Gluconeogenesis

Question 4

Which nutrient yields the highest amount of calories per gram?

Accepted Answer

Lipids (fats)

Question 5

During glycolysis, how many net ATP molecules are produced per molecule of glucose, and what are the main end products?

Accepted Answer

2 ATP; pyruvate and NADH

Question 6

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

Accepted Answer

Catabolism releases energy; anabolism requires energy

Question 7

Lipogenesis is most likely to occur under which physiological condition?

Accepted Answer

After a high-carbohydrate meal

Question 8

Cholesterol is important in the body for all of the following EXCEPT:

Accepted Answer

Directly providing energy for muscle contraction

Question 9

Which of the following is the correct sequence of steps in aerobic metabolism?

Accepted Answer

Glycolysis $$\rightarrow$$ Krebs cycle $$\rightarrow$$ Electron transport chain

Question 10

Which of the following is NOT a possible fate of carbohydrates in the body?

Accepted Answer

Direct conversion to amino acids without any intermediate steps

Question 11

Lipolysis refers to which of the following processes?

Accepted Answer

Breakdown of triglycerides into fatty acids and glycerol

Question 12

Beta oxidation is a metabolic pathway that:

Accepted Answer

Breaks down fatty acids into acetyl-CoA

Question 13

The goal of cellular respiration is best described as:

Accepted Answer

To produce ATP for cellular energy

Question 14

A patient with a genetic defect in mitochondrial function would most likely experience which of the following symptoms?

Accepted Answer

Reduced ATP production and muscle weakness

Question 15

If a person consumes excess carbohydrates, which pathway is most likely to be activated to store the surplus energy?

Accepted Answer

Lipogenesis

Question 16

Which of the following equations correctly represents the net ATP yield from aerobic metabolism of one glucose molecule?

Accepted Answer

$$	ext{Glucose} + 6	ext{O}_2 ightarrow 6	ext{CO}_2 + 6	ext{H}_2	ext{O} + 36	ext{ATP}$$

Question 17

Which process is responsible for the conversion of non-carbohydrate sources (such as amino acids) into glucose?

Accepted Answer

Gluconeogenesis

Question 18

A marathon runner is relying on aerobic metabolism for energy. Which step is NOT part of this process?

Accepted Answer

Fermentation

Question 19

Which of the following statements about glycolysis is correct?

Accepted Answer

Glycolysis produces pyruvate as an end product

Question 20

A person with a deficiency in beta oxidation would have difficulty metabolizing which type of nutrient for energy?

Accepted Answer

Lipids (fats)

Anatomy & Physiology: Cellular Metabolism and Bioenergetics Study Guide

Study Guide - Practice Questions