Directions: In the following questions, a statement of assertion (A) ...
Respiration involves the oxidation of glucose inside the mitochondria to produce energy, which is stored in the high energy bonds of ATP molecules as biologically useful energy.
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Directions: In the following questions, a statement of assertion (A) ...
Assertion (A): Energy is used during the process of respiration.
Reason (R): Respiration stores energy in the form of ATP.
The correct answer to this question is option 'D' - Assertion (A) is false but reason (R) is true.
Explanation:
Respiration and Energy:
- Respiration is the process by which living organisms obtain energy from the breakdown of glucose in the presence of oxygen.
- It is a series of chemical reactions that occur within cells to convert glucose and oxygen into carbon dioxide, water, and energy in the form of ATP (adenosine triphosphate).
- ATP is the energy currency of cells and is used to power various cellular activities, including muscle contraction, active transport, and synthesis of molecules.
Assertion (A) is false:
- The statement that energy is used during the process of respiration is incorrect.
- In fact, respiration is the process by which energy is released from glucose and stored in the form of ATP.
- During respiration, glucose molecules are broken down in a series of steps, releasing energy that is captured and stored in ATP molecules.
- This energy-rich ATP can then be used by the cell to perform various functions.
Reason (R) is true:
- The statement that respiration stores energy in the form of ATP is correct.
- ATP is a high-energy molecule that stores and transports energy within cells.
- During respiration, the breakdown of glucose releases energy that is used to convert ADP (adenosine diphosphate) into ATP.
- This conversion involves the addition of a phosphate group to ADP, resulting in the formation of ATP.
- The energy released during the breakdown of glucose is stored in the chemical bonds of ATP, making it readily available for cellular activities.
Conclusion:
- In conclusion, the statement in Assertion (A) is false because energy is released, not used, during the process of respiration.
- However, the statement in Reason (R) is true because respiration does store energy in the form of ATP.
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