Question

Which step of respiration is common to both the anaerobic and the aerobic respiration?

• A. Tricarboxylic acid cycle
• B. Electron transport chain
• C. Pyruvate phosphorylation
• D. Embden Meyerhof Parnas pathway

Answer 1

The correct option is D Embden Meyerhof Parnas pathway

Glycolysis, also known as EMP (Embden Meyerhof Parnas) pathway, is an essential and first step of respiration. It involves conversion of glucose to pyruvic acid. It is common in both the aerobic and the anaerobic respiration. It occurs in the cytosol of all living cells of prokaryotes, as well as eukaryotes. After glycolysis, if the cell gets the oxygen, it enters the Kreb's cycle and electron transport system. In case of the anaerobic condition, the cell undergoes fermentation.