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NCERT Textbook: Respiration in Plants | Biology Class 11 - NEET PDF Download

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FAQs on NCERT Textbook: Respiration in Plants - Biology Class 11 - NEET

1. What is respiration in plants?
Ans. Respiration in plants is a biochemical process in which plants take in oxygen and release carbon dioxide. It involves the breakdown of glucose to release energy, which is then used for various metabolic activities in plants.
2. How do plants respire?
Ans. Plants perform respiration through tiny openings called stomata present on the surface of their leaves. These stomata allow the exchange of gases, with oxygen entering the plant and carbon dioxide being released. The process of respiration in plants occurs in the presence of oxygen.
3. What is the role of mitochondria in plant respiration?
Ans. Mitochondria are the powerhouses of cells, including plant cells. They play a vital role in plant respiration by breaking down glucose molecules to release energy in the form of ATP (adenosine triphosphate). This energy is essential for various cellular activities and processes in plants.
4. How does respiration in plants differ from respiration in animals?
Ans. Respiration in plants and animals share a common goal of releasing energy, but they differ in the way they obtain oxygen and release carbon dioxide. Plants take in carbon dioxide and release oxygen during photosynthesis, while animals take in oxygen and release carbon dioxide during respiration. Additionally, plants perform respiration in various parts of their body, including leaves and roots, whereas animals primarily respire through specialized organs such as lungs.
5. What factors can affect the rate of respiration in plants?
Ans. Several factors can influence the rate of respiration in plants. These include temperature, availability of oxygen, presence of enzymes involved in respiration, and the energy requirements of the plant. Higher temperatures generally increase respiration rates, while lack of oxygen or insufficient enzyme activity can decrease it. Additionally, the energy demands of the plant, such as during growth or stress conditions, can also affect the rate of respiration.
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