Q: Which of the following is a correct summary of ATP production from one glucose molecule during cellular respiration?

$$\text{Net ATP} = 36$$ per glucose

Question 1

Which of the following best describes the role of ATP in cellular metabolism?

Accepted Answer

ATP serves as the primary energy currency, providing energy for cellular processes.

Question 2

Which chemical equation correctly represents the overall process of cellular respiration?

Accepted Answer

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

Question 3

A patient presents with symptoms of abdominal upset, nausea, and bloating after consuming dairy products. Which enzyme deficiency is most likely responsible?

Accepted Answer

Lactase

Question 4

Which of the following is an example of a decomposition reaction in the human body?

Accepted Answer

Hydrolysis of sucrose into glucose and fructose

Question 5

Which stage of cellular respiration does NOT require oxygen and occurs in the cytosol?

Accepted Answer

Glycolysis

Question 6

What is the net ATP yield from glycolysis per molecule of glucose?

Accepted Answer

$$2$$ ATP

Question 7

Which of the following best explains why cyanide poisoning is fatal?

Accepted Answer

Cyanide binds to electron carriers in the electron transport chain, inhibiting ATP production.

Question 8

Which of the following is a correct description of an exchange reaction?

Accepted Answer

Groups are exchanged between two chemical structures, involving both decomposition and synthesis.

Question 9

Which molecule is the initial substrate for glycolysis?

Accepted Answer

Glucose

Question 10

During the citric acid cycle, how many NADH molecules are produced per turn?

Accepted Answer

$$3$$ NADH

Question 11

Which of the following is NOT a function of chemical energy in the body?

Accepted Answer

Transmission of sound waves

Question 12

Which of the following best describes the induced fit model of enzyme action?

Accepted Answer

The enzyme changes shape slightly to achieve a closer fit with the substrate, facilitating catalysis.

Question 13

Which of the following is an organic cofactor required for enzyme function?

Accepted Answer

Vitamin B6

Question 14

Which of the following molecules is produced during the intermediate stage of cellular respiration?

Accepted Answer

Acetyl CoA

Question 15

Which enzyme is embedded in the plasma membrane and helps digest lactose in the small intestine?

Accepted Answer

Lactase

Question 16

Which of the following is a correct summary of ATP production from one glucose molecule during cellular respiration?

Accepted Answer

$$	ext{Net ATP} = 36$$ per glucose

Question 17

Which of the following is a real-life consequence of lactase deficiency?

Accepted Answer

Abdominal discomfort after consuming milk products

Question 18

Which of the following best describes the function of enzymes in cellular reactions?

Accepted Answer

Enzymes act as biological catalysts, accelerating reaction rates.

Question 19

Which of the following is a product of the citric acid cycle per turn?

Accepted Answer

1 ATP

Question 20

Which of the following best explains why heat energy is usually not available to do work in cells?

Accepted Answer

Heat energy is a form of kinetic energy from movement of atoms, ions, and molecules, and is measured as temperature.

CH 3: Cellular Metabolism

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