During glycolysis, glucose is...A) Produced from two molecules of pyruvic acidB) Converted into two molecules of ATPC) Partially broken down and some of its stored energy is releasedD) Partially broken down and its stored energy is increased

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1. During glycolysis, glucose is...
A) Produced from two molecules of pyruvic acid
B) Converted into two molecules of ATP
C) Partially broken down and some of its stored energy is released
D) Partially broken down and its stored energy is increased

fermentation pathways (lactic acid, alcoholic)
C) Partially broken down and some of its stored energy is released
I. Cellular respiration is the process by which cells break down organic compounds to release energy and make ATP. It includes anaerobic pathways, which operate in the absence of oxygen, and aerobic respiration, which occurs when oxygen is present.
II. Cellular respiration begins with glycolysis, which takes place in the cytosol of cells. During glycolysis, one glucose molecule is oxidized to form two pyruvic acid molecules. Glycolysis results in a net production of two ATP molecules and four NADH molecules.
III. Fermentation is a set of anaerobic pathways in which pyruvic acid is converted into other organic molecules in the cytosol. Fermentation does not produce ATP, but it does regenerate NAD+, which helps keep glycolysis operating.
IV. In lactic acid fermentation, an enzyme converts pyruvic acid into lactic acid.
V. In alcoholic fermentation, other enzymes convert pyruvic acid into ethyl alcohol and CO2.
VI. Through glycolysis, only about 3.5 percent of the energy available from the oxidation of glucose is transferred to ATP.
VII. The anaerobic pathways probably evolved very early in the history of life on Earth. For more than a billion years, they were the only pathways available for harvesting chemical energy.
NAD+ from NADH and H+

During glycolysis, glucose is...A) Produced from two molecules of pyruvic acidB) Converted into two molecules of ATPC) Partially broken down and some of its stored energy is releasedD) Partially broken down and its stored energy is increased

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During glycolysis, glucose is...A) Produced from two molecules of pyruvic acidB) Converted into two molecules of ATPC) Partially broken down and some of its stored energy is releasedD) Partially broken down and its stored energy is increased

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Without work one finishes nothing. - Ralph Waldo Emerson© 2026 Fatskills.com

All trademarks, logos and brand names are the property of their respective owners. All company, product and service names used in this website are for identification purposes only. Use of these names, trademarks and brands does not imply endorsement.

About | Explore | User Guide | Topics | Subjects | Doubt Solver | Career Aptitude Test | Answers | Free Tools | What Should We Know?
Privacy | Terms |

Without work one finishes nothing. - Ralph Waldo Emerson
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