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Respiration in Plants Video Lecture | Science Class 7 (Old NCERT)
FAQs on Respiration in Plants Video Lecture - Science Class 7 (Old NCERT)
| 1. What is respiration in plants? |  |
Ans. Respiration in plants is a biological process in which they take in oxygen and release carbon dioxide. It is an essential process for the survival of plants, as it provides them with energy by breaking down glucose molecules.
| 2. How do plants respire? | |
Ans. Plants respire through small openings called stomata present on the surface of their leaves. These stomata allow the exchange of gases, such as oxygen and carbon dioxide, with the surrounding environment. During respiration, plants take in oxygen and release carbon dioxide.
| 3. What is the importance of respiration in plants? | |
Ans. Respiration is crucial for plants as it provides them with energy for various metabolic activities. It helps in the breakdown of glucose molecules produced during photosynthesis, releasing energy in the form of ATP (adenosine triphosphate). This energy is utilized by the plants for growth, reproduction, and other physiological processes.
| 4. Can plants respire without sunlight? | |
Ans. Yes, plants can respire without sunlight. While photosynthesis, which is the process of converting sunlight into energy, only occurs during the presence of sunlight, respiration is an ongoing process that takes place both day and night. Plants require oxygen for respiration and can obtain it from the surrounding air, regardless of the presence of sunlight.
| 5. How does respiration in plants differ from respiration in animals? | |
Ans. Respiration in plants and animals share some similarities but also have significant differences. Both processes involve the exchange of gases, such as oxygen and carbon dioxide. However, plants primarily respire through their leaves' stomata, while animals respire through specialized organs like lungs or gills. Additionally, plants produce their own glucose through photosynthesis, while animals obtain glucose through their diet.
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