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Solving time: 6 mins
Differentiate between:
(a) Respiration and Combustion(b) Glycolysis and Kreb's cycle(c) Aerobic respiration and fermentation
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Text solution
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| Respiration | Combustion |
| 1. It takes place in living cells only. | 1. It does not take place in the living cell. |
| 2. It is carried out with the help of various enzymes. | 2. Enzymes are not involved in this process. |
| 3. The oxidation of food and the liberation of energy occur in a step-wise manner. | 3. The substances are oxidized spontaneously with sudden release of energy. |
| 4. It occurs at the body temperature of the organism. | 4. Sudden release of energy generates high temperature of a fire. |
| 5. 60% of energy escapes as body heat and 40% of energy is packaged directly into new chemical energy (ATP). | 5. Energy released in combustion is dissipated as heat and to some extent as light. |
| Glycolysis | Krebs cycle |
| 1. It is a linear pathway. | 1. It is a cyclic pathway. |
| 2. It occurs in the cell cytoplasm. | 2. It occurs in the mitochondrial matrix. |
| 3. It occurs in both aerobic as well as anaerobic respiration. | 3. It occurs in aerobic respiration only. |
| 4. Net generation of 2 and 2 ATP molecules occurs on the breakdown of one glucose molecule. | 4. It produces 6 , 2FADH, and 2 ATP molecules on the breakdown of two acetyl-CoA molecules generated after glycolysis of one glucose molecule. |
| Aerobic respiration | Fermentation |
| 1. Oxygen is used for deriving energy. | 1. Occurs in the absence of oxygen. |
| 2. Occurs in the cytoplasm and mitochondria. | 2. Occurs in the cytoplasm. |
| 3. End products are carbon dioxide and water. | 3. End products are ethyl alcohol and carbon dioxide. |
| 4. Complete oxidation of the respiratory substrate takes place. | 4. Incomplete oxidation of the respiratory substrate takes place. |
| 5. About 36 ATP molecules are produced. | 5. Only 2 ATP molecules are produced. |
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| Question Text | Differentiate between: (a) Respiration and Combustion(b) Glycolysis and Kreb's cycle (c) Aerobic respiration and fermentation |
| Updated On | Apr 5, 2022 |
| Topic | Respiration in Plants |
| Subject | Biology |
| Class | Class 11 |
| Answer Type | Text solution:1 Video solution: 1 |
| Upvotes | 155 |
| Avg. Video Duration | 3 min |
