Glycolysis takes place in:
Correct answer: B. Cytosol
- A. Nucleus
- B. Cytosol
- C. Mitochondria
- D. Ribosomes
Explanation
Glycolysis is the first step in the process of cellular respiration and occurs in the cytosol of the cell. During glycolysis, one glucose molecule is broken down into two molecules of pyruvate, producing a small amount of ATP and NADH in the process. The cytosol provides the necessary environment for these enzymatic reactions to occur. The nucleus, mitochondria, and ribosomes have different functions in the cell. The nucleus is involved in genetic information storage and processing, the mitochondria are responsible for the later stages of cellular respiration, and ribosomes are the sites of protein synthesis. Thus, glycolysis specifically takes place in the cytosol.
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About Bioenergetics
Cellular respiration explains how cells release energy from glucose through glycolysis, the link reaction, Krebs cycle and electron transport chain. It includes ATP production, substrate-level and oxidative phosphorylation, aerobic versus anaerobic respiration, and the roles of mitochondria, oxygen and fermentation in energy transfer.
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