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Photosynthesis in Higher Plants Video Lecture - NEET
FAQs on Photosynthesis in Higher Plants Video Lecture - NEET
| 1. What is photosynthesis in higher plants? |  |
Ans. Photosynthesis is the process by which green plants, algae, and some bacteria convert sunlight, carbon dioxide, and water into glucose and oxygen. In higher plants, such as trees and flowering plants, photosynthesis occurs in specialized organelles called chloroplasts, primarily in the leaves.
| 2. How does photosynthesis occur in higher plants? | |
Ans. Photosynthesis in higher plants occurs in two stages: the light-dependent reactions and the light-independent reactions (also known as the Calvin cycle). During the light-dependent reactions, chlorophyll in the chloroplasts absorbs sunlight and converts it into chemical energy in the form of ATP and NADPH. These energy carriers are then used in the light-independent reactions to convert carbon dioxide into glucose.
| 3. What are the factors that affect photosynthesis in higher plants? | |
Ans. Several factors can influence the rate of photosynthesis in higher plants. These include the intensity and quality of light, availability of carbon dioxide, temperature, and the concentration of chlorophyll. Factors like water availability, nutrient levels, and the presence of pollutants can also impact photosynthesis.
| 4. How does photosynthesis contribute to the oxygen balance in the atmosphere? | |
Ans. Photosynthesis plays a crucial role in maintaining the oxygen balance in the atmosphere. During photosynthesis, plants release oxygen as a byproduct. This oxygen is then released into the atmosphere, replenishing the oxygen levels that are utilized by living organisms during respiration. In this way, photosynthesis helps to maintain a stable oxygen concentration in the atmosphere.
| 5. What are the implications of photosynthesis in higher plants for the environment? | |
Ans. Photosynthesis in higher plants has several important implications for the environment. Firstly, it acts as a major pathway for the removal of carbon dioxide from the atmosphere, helping to mitigate climate change. Additionally, photosynthesis provides the primary source of energy and organic matter for ecosystems, supporting the growth and survival of other organisms. It also contributes to the production of food, fiber, and fuel for human consumption. Therefore, understanding and optimizing photosynthesis in higher plants is crucial for sustainable agriculture and environmental conservation.
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Dec 21, 2024 Last updated |
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