Answer:
0; 2; 4 ;0
Explanation:
Cellular respiration oxidizes the glucose molecule which provides energy in the form of ATP molecules along with the Carbon dioxide and water as byproducts. The respiration takes place in four steps: the glycolysis, followed by pyruvate decarboxylation, the TCA cycle and the ETC.
1. Glycolysis: converts the glucose molecule to 2 molecules of pyruvate, 2 molecules of ATP and NADH but no carbon dioxide.
2. Pyruvate decarboxylation: the pyruvate is converted into the 2 molecules of Acetyl-CoA by removing 2 molecules of Carbon dioxide from the pyruvate.
3. Citric acid cycle- 2 molecules of Carbon dioxide gas are formed from 1 Acetyl-CoA and since 2 Acetyl-CoA are present therefore 2 cycles will form 4 molecules of gas.
4. Electron transport chain: No carbon dioxide gas is formed.
Thus, 0; 2; 4 ;0 is correct.
