Most of the ATP creation during respiration occurs as a result of what driving force?

Protons moving down a concentration gradient

Electrons moving down a concentration gradient

Electrons moving down the electron transport chain

Sodium ions moving down a concentration gradient

Movement of pyruvate from the cytoplasm into the mitochondria

What is the cause of the cramps you feel in your muscles during strenuous exercise?

Too much oxygen delivery to the muscles

Which of the following statements is incorrect?

Glycolysis occurs in the mitochondria

Glycolysis can occur with or without oxygen

Glycolysis is the first step of both anaerobic and aerobic respiration

Glycolysis leads to the production of 2 ATP, 2 NADH, and 2 pyruvate

The Molecule Quiz

Approved & Edited by ProProfs Editorial Team

The editorial team at ProProfs Quizzes consists of a select group of subject experts, trivia writers, and quiz masters who have authored over 10,000 quizzes taken by more than 100 million users. This team includes our in-house seasoned quiz moderators and subject matter experts. Our editorial experts, spread across the world, are rigorously trained using our comprehensive guidelines to ensure that you receive the highest quality quizzes.

Learn about Our Editorial Process

| By Samanthakey

Samanthakey

Community Contributor

Quizzes Created: 1 | Total Attempts: 339

Questions: 7 | Attempts: 339 | Updated: Mar 21, 2023

Questions

Settings

Create your own Quiz

Questions and Answers

1.

Most of the ATP creation during respiration occurs as a result of what driving force?
- A.
  
  Electrons moving down a concentration gradient
- B.
  
  Electrons moving down the electron transport chain
- C.
  
  Protons moving down a concentration gradient
- D.
  
  Sodium ions moving down a concentration gradient
- E.
  
  Movement of pyruvate from the cytoplasm into the mitochondria
Correct Answer
C. Protons moving down a concentration gradient

Explanation
During respiration, ATP is created through a process called oxidative phosphorylation. This process involves the movement of protons (H+) down a concentration gradient across the inner mitochondrial membrane. As electrons pass through the electron transport chain, protons are pumped from the mitochondrial matrix to the intermembrane space, creating a concentration gradient. The movement of protons back into the matrix through ATP synthase drives the synthesis of ATP. Therefore, the correct answer is "Protons moving down a concentration gradient."

Rate this question:
2.

What is the cause of the cramps you feel in your muscles during strenuous exercise?
- A.
  
  Lactic acid fermentation
- B.
  
  Alcohol fermentation
- C.
  
  Chemiosmosis coupling
- D.
  
  Too much oxygen delivery to the muscles
- E.
  
  Oxidative phosphorylation
Correct Answer
A. Lactic acid fermentation

Explanation
During strenuous exercise, the muscles require a lot of energy, which is produced through cellular respiration. However, when the oxygen supply to the muscles is insufficient, the cells switch to anaerobic respiration, specifically lactic acid fermentation. This process produces lactic acid as a byproduct, which can build up in the muscles and cause cramps. Therefore, lactic acid fermentation is the cause of the cramps felt during strenuous exercise.

Rate this question:
3.

Which of the following statements is incorrect?
- A.
  
  Glycolysis can occur with or without oxygen
- B.
  
  Glycolysis occurs in the mitochondria
- C.
  
  Glycolysis is the first step of both anaerobic and aerobic respiration
- D.
  
  Glycolysis leads to the production of 2 ATP, 2 NADH, and 2 pyruvate
Correct Answer
B. Glycolysis occurs in the mitochondria
4.

Which of the following procedures occurs in both respiration and photosynthesis?
- A.
  
  Calvin cycle
- B.
  
  Chemiosmosis
- C.
  
  Citric acid cycle
- D.
  
  Krebs cycle
- E.
  
  Glycolysis
Correct Answer
B. Chemiosmosis

Explanation
Chemiosmosis is the process that occurs in both respiration and photosynthesis. It involves the movement of ions across a membrane, which generates ATP, the energy currency of the cell. In respiration, chemiosmosis occurs in the inner mitochondrial membrane, while in photosynthesis, it occurs in the thylakoid membrane of chloroplasts. This process is essential for the production of ATP in both cellular respiration and photosynthesis, making it the correct answer.

Rate this question:
5.

Which of the following molecules can give rise to the most ATP?
- A.
  
  NADH
- B.
  
  FADH2
- C.
  
  Pyruvate
- D.
  
  Glucose
Correct Answer
D. Glucose

Explanation
Glucose can give rise to the most ATP because it is the starting molecule for cellular respiration, a process that generates ATP. Glucose is broken down through glycolysis, the Krebs cycle, and oxidative phosphorylation, which produce a total of 36-38 ATP molecules per glucose molecule. On the other hand, NADH and FADH2 are electron carriers that donate electrons to the electron transport chain, generating a smaller amount of ATP. Pyruvate is an end product of glycolysis and can be further metabolized to produce ATP, but it yields less ATP compared to glucose.

Rate this question:
6.

Which of the following is a proper representation of the products of a single glucose molecule after it has completed the Krebs cycle?
- A.
  
  10 ATP, 4 NADH, 2 FADH2
- B.
  
  10 NADH, 4 FADH2, 2 ATP
- C.
  
  10 ATP, 4 FADH2, 2 NADH
- D.
  
  10 NADH, 4 ATP, 2 FADH2
- E.
  
  10 NADH, 4 FADH2, 2 ATP
Correct Answer
D. 10 NADH, 4 ATP, 2 FADH2

The Molecule Quiz

Most of the ATP creation during respiration occurs as a result of what driving force?

What is the cause of the cramps you feel in your muscles during strenuous exercise?

Which of the following statements is incorrect?

Which of the following procedures occurs in both respiration and photosynthesis?

Which of the following molecules can give rise to the most ATP?

Which of the following is a proper representation of the products of a single glucose molecule after it has completed the Krebs cycle?