Single Answer MCQ
Q-00040055

What is the first step in the process of respiration in living organisms?

1

Fermentation

2

Glycolysis

3

Krebs Cycle

4

Electron Transport Chain

Answer and Solution

Answer

B. Glycolysis

Solution:

Glycolysis is the first step in respiration where glucose is broken down into pyruvate. Fermentation occurs after glycolysis, while the Krebs Cycle and Electron Transport Chain are subsequent steps.

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