The cellular respiration differs from breathing in that in cellular r...
Cellular respiration is a biochemical process of catabolism that involves the oxidation of glucose to CO2 and water with the release of energy. It is an intracellular process and occurs inside the cells. In contrast, breathing is a physical process that involves simple diffusion and exchange of gases. It is an extracellular process.
The cellular respiration differs from breathing in that in cellular r...
Cellular Respiration vs Breathing
Cellular Respiration:
- Cellular respiration is the process by which cells convert glucose and oxygen into carbon dioxide, water, and energy in the form of ATP (adenosine triphosphate).
- It occurs in the mitochondria of cells.
- The overall equation for cellular respiration is:
C6H12O6 + 6O2 -> 6CO2 + 6H2O + ATP
- Glucose is oxidized (broken down) in a series of chemical reactions, releasing carbon dioxide and water as byproducts.
- This process also generates energy in the form of ATP, which is used by cells for various metabolic activities.
Breathing:
- Breathing, or respiration, is the process of inhaling oxygen and exhaling carbon dioxide.
- It involves the exchange of gases between the respiratory system and the environment.
- Breathing occurs in the lungs, where oxygen from the inhaled air diffuses into the bloodstream and carbon dioxide from the bloodstream is expelled into the exhaled air.
- The primary purpose of breathing is to facilitate the exchange of gases and maintain the oxygen and carbon dioxide levels in the body.
Difference between Cellular Respiration and Breathing:
- Cellular respiration is a metabolic process that occurs within cells, while breathing is a physical process involving the exchange of gases between the respiratory system and the environment.
- Cellular respiration involves the breakdown of glucose and the production of energy, carbon dioxide, and water, while breathing involves the intake of oxygen and the expulsion of carbon dioxide.
- Cellular respiration occurs in the mitochondria of cells, while breathing occurs in the lungs.
- Cellular respiration is an essential process for the survival of cells and the production of ATP, while breathing is necessary to maintain oxygen levels in the body and remove carbon dioxide.
Correct Answer:
- The correct answer is option 'A' - Glucose is oxidised to CO2 and water with the release of energy.
- This is the main process that occurs during cellular respiration, as explained above.
- Oxygen is required for the final step of cellular respiration, where it acts as the final electron acceptor in the electron transport chain.
- However, the release of oxygen into the cell from oxyhemoglobin is not directly related to cellular respiration.
- Breathing, on the other hand, is primarily involved in the exchange of gases between the respiratory system and the environment, and it is not directly involved in the cellular respiration process.
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