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What is the correct sequence of electron travels during aerobic respiration?

What is the correct sequence of electron travels during aerobic respiration?

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A. Food → citric acid cycle → ATP → NAD+
B. Food → NADH → electron transport chain → oxygen
C. Glucose → pyruvate → ATP→ oxygen
D. Glucose → ATP → electron transport chain → NADH
E. Food → glycolysis → citric acid cycle → NADH → ATP

This question is part of Chapter 9 Test - AP Biology
Asked by Muitran, Last updated: Oct 19, 2020

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4 Answers

L. Brett

L. Brett

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L. Brett
L. Brett, Sales Manager, MBA, Detroit

Answered Nov 27, 2018

Option B - Food -> NADH -> Electron transport chain -> oxygen is the correct sequence of electron travel during aerobic respiration.

In aerobic respiration (also known as cellular respiration) electrons travel in this sequence: electrons are picked up from the food by NADH and FADH, the electron picked is then transferred to the electron transport chain through a proton pump, the activity of the pump creates an electrochemical gradient, an enzyme called ATP synthase uses the electrochemical gradient produced to generate ATP. The last acceptor of an electron in aerobic respiration is oxygen, an electron is donated to oxygen to produce water.

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c.Dorothy

c.Dorothy

c.Dorothy
C.Dorothy

Answered Dec 08, 2017

Another name for aerobic respiration is cellular respiration. This is when there is a conversion of the nutrients to the energy. This energy within the cell is called adenosine triphosphate or ATP. After that, whatever is left over is waste. The waste is removed. Electrons do travel downhill during aerobic respiration. NADH is nicotinamide adenine dinucleotide. During this process, the food or nutrients are taken into the cell and then the electron transport chain moves the nutrients.

The electron donor takes in and transports the nutrients which is then accepted by the electron acceptor. Then is becomes oxygen. Some of the nutrients include sugar, amino acids and fatty acids. The electron acceptor is most likely going to be molecular oxygen.

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John Adney

John Adney

John Adney
John Adney

Answered Nov 11, 2017

My answer as I have studied in 11th is B for sure

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John Smith

John Smith

John Smith
John Smith

Answered Apr 09, 2017

Food → NADH → electron transport chain → oxygen
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