Question 1

Which of the following best describes the main function of catabolic reactions in cellular metabolism?

Accepted Answer

They break down large molecules into smaller ones, releasing energy.

Question 2

During aerobic cellular respiration, which of the following correctly represents the overall chemical equation?

Accepted Answer

$$C_6H_{12}O_6$ + 6O_2 \rightarrow 6CO_2 + 6H_2O + ATP$$

Question 3

Which stage of aerobic respiration produces the greatest amount of ATP?

Accepted Answer

Electron transport chain and chemiosmosis

Question 4

A patient is unable to produce insulin. Which metabolic process will be most directly affected?

Accepted Answer

Glycogenesis

Question 5

Which of the following best explains why oxygen is essential for cellular respiration?

Accepted Answer

Oxygen acts as the final electron acceptor in the electron transport chain.

Question 6

Which process is stimulated by glucagon and results in an increase in blood glucose levels?

Accepted Answer

Glycogenolysis

Question 7

A marathon runner is using stored energy during a race. Which metabolic pathway is most likely providing glucose for ATP production after glycogen stores are depleted?

Accepted Answer

Gluconeogenesis

Question 8

Which of the following statements about glycolysis is correct?

Accepted Answer

It converts one glucose molecule into two pyruvate molecules.

Question 9

Which hormone stimulates the conversion of non-carbohydrate molecules into glucose in the liver?

Accepted Answer

Cortisol

Question 10

Which of the following best describes the role of ATP synthase in cellular respiration?

Accepted Answer

It adds a phosphate group to ADP to form ATP.

Question 11

A person is fasting and their blood glucose levels are low. Which process is most likely occurring in their liver to maintain glucose homeostasis?

Accepted Answer

Glycogenolysis

Question 12

Which of the following is an example of potential energy in the human body?

Accepted Answer

ATP molecules storing energy in their chemical bonds

Question 13

Which of the following best describes the relationship between catabolic and anabolic reactions?

Accepted Answer

Catabolic reactions release energy by breaking down molecules, and this energy is used by anabolic reactions to build complex molecules.

Question 14

Which of the following is NOT a product of the citric acid (Krebs) cycle?

Accepted Answer

Oxygen

Question 15

A patient with a deficiency in the enzyme ATP synthase would have difficulty with which process?

Accepted Answer

Producing ATP during the electron transport chain

Question 16

Which of the following best explains why plants are essential for animal metabolism?

Accepted Answer

Plants provide oxygen and store energy in glucose through photosynthesis.

Question 17

Which process is responsible for the conversion of glucose to pyruvate in the absence of oxygen?

Accepted Answer

Glycolysis

Question 18

If a person has a genetic disorder that prevents the formation of acetyl CoA, which stage of cellular respiration would be directly impaired?

Accepted Answer

Citric acid cycle

Question 19

Which of the following is a correct sequence of events in aerobic cellular respiration?

Accepted Answer

Glycolysis → Formation of acetyl CoA → Citric acid cycle → Electron transport chain

Question 20

Which of the following best describes the process of gluconeogenesis?

Accepted Answer

The synthesis of glucose from non-carbohydrate sources

Metabolism, Energy, and Carbohydrate Metabolism: Study Notes for ANP College Students

Study Guide - Practice Questions

Study Guide - Flashcards