In a typical eukaryotic cell, where does glycolysis occur?

• A. In the nucleus
• B. In the mitochondrial matrix
• C. On the inner mitochondrial membrane
• D. In the cytosol (cytoplasm)

Answer: (D)

Verified step by step guidance

1. Recall the process of glycolysis, which is the breakdown of glucose into pyruvate, producing ATP and NADH in the process.
2. Understand that glycolysis is a cytoplasmic process, meaning it occurs outside the organelles, specifically in the cytosol (cytoplasm) of the cell.
3. Eliminate options that involve organelles such as the nucleus, mitochondrial matrix, or inner mitochondrial membrane, since glycolysis does not take place inside these structures.
4. Recognize that the mitochondria are involved in later stages of cellular respiration (like the Krebs cycle and oxidative phosphorylation), not glycolysis itself.
5. Conclude that the correct location for glycolysis in a typical eukaryotic cell is the cytosol (cytoplasm).