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Photosynthesis Reaction Video Lecture | Biology Class 11 - NEET
FAQs on Photosynthesis Reaction Video Lecture - Biology Class 11 - NEET
| 1. What is photosynthesis and why is it important? |  |
Ans. Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen. This process is vital for sustaining life on Earth as it produces oxygen, which is necessary for all living organisms, and it also provides the primary source of food and energy for plants and other organisms.
| 2. What are the main components required for photosynthesis? | |
Ans. The main components required for photosynthesis are sunlight, carbon dioxide, and water. Sunlight provides the energy needed for the process, while carbon dioxide and water serve as the raw materials. These components are absorbed by the chlorophyll pigment in the chloroplasts of plant cells to initiate the photosynthesis reaction.
| 3. How does photosynthesis contribute to the carbon cycle? | |
Ans. Photosynthesis plays a crucial role in the carbon cycle by removing carbon dioxide from the atmosphere. During the process, plants absorb carbon dioxide from the air and utilize it to produce glucose and oxygen. The glucose is used as an energy source by the plants, while the oxygen is released back into the atmosphere. This helps maintain a balance of carbon dioxide levels in the atmosphere and regulates the Earth's climate.
| 4. Can photosynthesis occur without sunlight? | |
Ans. No, photosynthesis cannot occur without sunlight. Sunlight provides the necessary energy for the process to take place. The chlorophyll pigment in plant cells absorbs the light energy and converts it into chemical energy, which is used to power the photosynthesis reaction. Without sunlight, the process cannot proceed, and plants would not be able to produce food or oxygen.
| 5. How does temperature affect photosynthesis? | |
Ans. Temperature plays a significant role in photosynthesis as it affects the rate of the process. Within a certain range, an increase in temperature generally leads to an increase in photosynthesis rate, as it provides more energy for the reaction. Conversely, extremely high temperatures can damage the enzymes involved in photosynthesis and inhibit the process. Similarly, very low temperatures can slow down or even halt photosynthesis, as the enzymes become less active. Thus, maintaining an optimal temperature is crucial for maximizing photosynthesis efficiency.
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Video Description: Photosynthesis Reaction for NEET 2025 is part of Biology Class 11 preparation.
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