Quiz about Cellular Respiration AP Biology

Question 1

What are the reactants in the equation for cellular respiration?

Accepted Answer

glucose and oxygen

Answer

oxygen and lactic acid

Answer

carbon dioxide and water

Answer

water and glucose

Question 2

During chemiosmosis

Accepted Answer

ATP is synthesized when H+ ions move through a channel in ATP synthase

Answer

H+ ions serve as the final electron acceptor

Answer

a concentration gradient is generated when H+ ions are passively transported from the matrix to the inner mitochondrial membrane

Answer

energy is released as H+ ions move freely across the mitochondrial membrane

Question 3

The final electron acceptor of aerobic respiration is _______ and this allows _______________ to continue.

Accepted Answer

oxygen, electron flow

Answer

water, citric acid cycle

Answer

carbon dioxide, aerobic respiration

Answer

NAD+, chemiosmosis

Question 4

Anaerobic respiration yields about ______ ATP per glucose whereas aerobic respiration yields about _______ ATP per glucose.

Accepted Answer

2, 38

Answer

38, 2

Answer

2, 18

Answer

18, 2

Question 5

The electrons that transfer energy to pump protons across the inner mitochondrial membrane were supplied by

Accepted Answer

NADH and FADH2

Answer

ATP and NADPH

Answer

water and oxygen

Question 6

At the end of the Kreb's cycle, where is most of the energy from the original glucose stored?

Accepted Answer

in NADH

Answer

in CO2

Answer

in ATP

Answer

in pyruvate

Question 7

Which process is the largest contributor to the release of CO₂

Accepted Answer

Citric Acid Cycle or Krebs Cycle

Answer

Pyruvate Oxidation

Answer

Glycolysis

Answer

Oxidative Phosphorylation

Question 8

Which of the following processes creates the most ATP during aerobic cellular respiration?

Accepted Answer

electron transport chain

Answer

glycolysis

Answer

fermentation

Answer

Citric acid cycle

Question 9

The number of ATP molecules produced by the Krebs Cycle per glucose molecule is _______. (Reminder it takes two turns of the cycle to use 1 molecule of glucose)

Accepted Answer

2

Answer

3

Answer

4

Answer

0

Question 10

How many CO₂ molecules are produced by the Krebs Cycle for a molecule of glucose? (Reminder it takes two turns of the cycle to use 1 molecule of glucose)

Accepted Answer

4

Answer

2

Answer

6

Answer

3

Question 11

Which of the following statements are TRUE about the process that occurs in cristae?

ATP is synthesized by ATP synthase on the inner membrane of mitochondrion

FADH₂transfers its hydrogen atoms to the succinate dehydrogenase

Formation of water molecule

Production of ATP in the electron transport chain is called oxidative phosphorylation

Accepted Answer

I, II, III and IV

Answer

I, II and III

Answer

I, II and IV

Answer

I, III and IV

Question 12

Which of the following gets pumped into the intermembrane space?

Accepted Answer

H+

Answer

FADH2

Answer

O2

Answer

NAD+

Question 13

Which of the following is the primary purpose of cellular respiration in cells?

Accepted Answer

C) To generate ATP for cellular activities

Answer

A) To produce glucose

Answer

B) To convert solar energy into chemical energy

Answer

D) To store energy in the form of starch

Question 14

During which stage of cellular respiration is the majority of ATP produced?

Accepted Answer

C) Electron Transport Chain

Answer

A) Glycolysis

Answer

B) Krebs Cycle

Answer

D) Fermentation

Question 15

What is the role of oxygen in cellular respiration?

Accepted Answer

B) It serves as the final electron acceptor in the electron transport chain

Answer

A) It acts as a substrate for glycolysis

Answer

C) It is converted into carbon dioxide during the Krebs cycle

Answer

D) It is used to phosphorylate ADP to ATP

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