(a) Respiration and Combustion
(b) Glycolysis and Krebs’ cycle
(c) Aerobic respiration and Fermentation
Solution:
a)Respiration and Combustion
Respiration | Combustion |
It is a biochemical process | It is a physicochemical process. |
Temperature stays low | Temperature drastically raises |
It’s found in living cells. | It is a non-cellular process |
Energy entrapped in the form of ATP | The combustion process does not necessitate the use of ATP. |
b) Glycolysis and Krebs’ cycle
Glycolysis | Krebs Cycle |
The first step in respiration | The second step in respiration |
Takes place in cytoplasm | Takes place in mitochondria |
Occurs both aerobically and anaerobically | Occurs only in aerobic |
Two ATPs are consumed | ATPs are not consumed |
The net gain is 8 ATP’s | The net gain is 24 ATP’s |
It is a linear pathway | It is a circular pathway |
c) Aerobic respiration and Fermentation
Aerobic respiration | Fermentation |
Included in the exchange of gases | Does not include exchange of gases |
Aerobic respiration necessitates the presence of oxygen. | For the fermentation process to work, there should be no oxygen present. |
Respiratory material is completely oxidised | Respiratory material is incompletely oxidised |
The end products are inorganic | At least one product is organic |