Which one is the correct sequence of respiration?

A. Glycolysis → Krebs cycle → ETC A.

B. Krebs cycle → ETC → Glycolysis B.

C. ETC → Glycolysis → Krebs cycle C.

D. Glycolysis → ETC → Krebs cycle D.

Correct Answer: A সঠিক উত্তর: A

Explanation ব্যাখ্যা

The correct sequence of respiration is: Glycolysis → Krebs cycle → ETC.

Glycolysis: This is the initial stage where glucose is broken down into pyruvate molecules.
Krebs cycle: The pyruvate molecules from glycolysis enter the Krebs cycle (also called the citric acid cycle) where they are further oxidized to produce NADH, FADH2, and ATP.
Electron Transport Chain (ETC): The NADH and FADH2 from glycolysis and the Krebs cycle deliver electrons to the ETC, which ultimately generates the majority of ATP through oxidative phosphorylation.

Practice MCQ for SSC, UPSC, RRB Exams

Correct Answer: A সঠিক উত্তর: A

Explanation ব্যাখ্যা

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