What is the correct sequence of stages in cellular respiration? - ProProfs Discuss
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What is the correct sequence of stages in cellular respiration?

Asked by Computerwiz, Last updated: Apr 11, 2024

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4 Answers

W. Wright

W. Wright

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W. Wright
W. Wright, Biology student, Biology student, Astoria

Answered Feb 18, 2021

There are three basic stages of cellular respiration, and sometimes can be broken down into four stages. However, it is important to understand the correct sequence of these stages. The correct sequence is as given thus: the first stage is glycolysis.

This stage occurs in relatively every organism, both eukaryotic and prokaryotic. The second stage is the bridge reaction. This stage is not always included; that is, it is the omission of the three stages. This simply sets the stage for the process of aerobic respiration. The third and fourth stages are the Krebs cycle and electron transport chain, respectively.

These are pathways on which oxygen depends, and they occur in order in mitochondria. The rate per time at which these stages of cellular respiration occur is typically different. Also, the same set of reactions will most likely proceed at separate rates and at different times in the same organism.

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F. Lopez

F. Lopez

F. Lopez
F. Lopez

Answered Feb 12, 2021

There are different stages that will occur during cellular respiration. In order, the process will include the following: glycolysis, which means that it would need to start with glucose. Then the next process will be the citric acid cycle. The third step is going to be oxidative phosphorylation.

Cellular respiration is going to be important because this will be in charge of providing the cells the required energy so that they can function properly. It is through cellular respiration that food will be broken down so that cells will be able to work. The living organisms that are made up of cells will be able to thrive and survive.

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G. Roland

G. Roland

G. Roland
G. Roland, Professor, Austin

Answered Feb 12, 2021

Cellular respiration is a metabolic pathway that breaks down glucose and manufactures ATP, and there are four stages of cellular respiration. The cellular respiration stages include glycolysis, pyruvate oxidation, the citric acid or Krebs cycle, and oxidative phosphorylation. In glycolysis, glucose is a six-carbon sugar undergoing a sequence of chemical alterations.

It eventually becomes converted. In these outcomes, ATP is produced, and NAD is converted to NADH. In pyruvate oxidation, each pyruvate from glycolysis moves into the mitochondrial matrix, the innermost compartment of mitochondria. From that point, it is converted into a two-carbon molecule attached to coenzyme A, known as acetyl COA.

Carbon dioxide is distributed, and NADH is produced. In the citric acid phase, the acetyl CoA made in the last step combines with a four-carbon molecule and endures reactions. It stimulates the four-carbon starting molecule. ATP, NADH, and FADH are created, and carbon dioxide is released.

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computerwiz908

computerwiz

computerwiz908
Computerwiz

Answered May 20, 2019

Glycolysis, the citric acid cycle, and oxidative phosphorylation

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