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Index: Photosynthesis in Higher Plants | Biology Class 11 - NEET PDF Download

(a) Early Experiments

(b) Where Does Photosynthesis Take Place?

(c) How Many Pigments are Involved in Photosynthesis?

(d) What is Light Reaction?

(e) The Electron Transport

(f) Where are ATP and NADPH Used?

(g) The C Pathway

(h) Photorespiration

(i) Factors Affecting Photosynthesis

(j) General Content

(k) Previous Year Questions

(l) Summary and Mind Map

(m) NCERT Textbook and Solutions

(n) Tests of the Chapter: Photosynthesis in Higher Plants

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FAQs on Index: Photosynthesis in Higher Plants - Biology Class 11 - NEET

1. What is photosynthesis in higher plants?
Ans. Photosynthesis in higher plants is the process by which green plants, algae, and certain bacteria convert light energy from the sun into chemical energy in the form of glucose. This process takes place in chloroplasts, where chlorophyll captures sunlight and uses it to convert carbon dioxide and water into glucose and oxygen.
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. During the light-dependent reactions, light energy is absorbed by chlorophyll and used to convert water into oxygen and ATP (adenosine triphosphate). The light-independent reactions, also known as the Calvin cycle, use the ATP and carbon dioxide to produce glucose.
3. What are the factors affecting photosynthesis in higher plants?
Ans. Several factors can affect photosynthesis in higher plants. These include light intensity, carbon dioxide concentration, temperature, and the availability of water. Higher light intensity generally increases the rate of photosynthesis, while lower levels can limit it. Similarly, higher carbon dioxide concentrations and optimal temperatures can enhance photosynthesis, while water scarcity can hinder the process.
4. How is photosynthesis beneficial for higher plants?
Ans. Photosynthesis is crucial for higher plants as it provides them with the energy they need to grow and survive. Through photosynthesis, plants produce glucose, which serves as their primary source of energy. Additionally, photosynthesis releases oxygen as a byproduct, which is essential for the survival of many organisms, including humans.
5. Can photosynthesis be affected by environmental factors?
Ans. Yes, photosynthesis in higher plants can be significantly affected by environmental factors. Changes in light intensity, temperature, carbon dioxide levels, and water availability can all influence the rate of photosynthesis. For example, extreme temperatures can denature enzymes involved in the process, while water scarcity can lead to stomatal closure, reducing carbon dioxide uptake and photosynthesis.
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