Question

Which of the following steps are sequentially involved in the process of anaerobic respiration?

Options

• Glycolysis → Krebs cycle → Electron transport system

• Glycolysis → Reduction → Decarboxylation

• Glycolysis → Krebs cycle → Decarboxylation

• Glycolysis → Decarboxylation → Reduction

Answer 1

Glycolysis → Decarboxylation → Reduction

Explanation:

First step glycolysis is common for both aerobic and anaerobic pathways. If aerobic pathway it will enter mitochondria for further degradation. For the anaerobic pathway, pyruvic acid undergoes decarboxylation and reduction to produce 2 ATP.