Question

Question 4 What are the main steps in aerobic respiration? Where does it take place?

Class XI Biology Chapter - Respiration in Plants Page 238

Answer 1

The main steps in aerobic respiration include:-
(i) Breakdown of glucose into pyruvate molecule with the help of glycolysis in cytoplasm.
(ii) Complete breakdown of pyruvate molecule into carbon dioxide and water with the release of energy in mitochondria with the help of kreb's cycle.


Aerobic respiration takes place in presence of oxygen in cytoplasm and mitochondria.



Hope it helps you.

Answer 2

Answer:

Main steps in aerobic respiration are as follows

• Glycolysis: Occurs in the cytoplasm(cytosol) where glucose is broken down to pyruvic acid.

• Oxidative decarboxylation of pyruvic acid to acetyl coenzyme-A: Takes place inside the mitochondrial matrix.

• TCA or Krebs cycle takes place in Mitochondrial matrix where pyruvic acid is oxidized to transform the energy contained in these molecules into ATP.

• Electron transport chain occurs in mitochondrial membrane involves ATP synthase complex.