Question

what is photosynthesis

Answer 1

✨Question:

What is photosynthesis?

Answer:

Photosynthesis is a process by which phototrophs convert light energy into chemical energy, which is later used to fuel cellular activities. The chemical energy is stored in the form of sugars, which are created from water and carbon dioxide.

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★Factors Affect Photosynthesis

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1. Light Intensity: Increased light intensity results in a higher rate of photosynthesis. On the other hand, low light intensity results in a lower rate of photosynthesis.

2. The concentration of CO2: Higher concentration of carbon dioxide helps in increasing the rate of photosynthesis. Usually, carbon dioxide in the range of 300 – 400 PPM is adequate for photosynthesis.

3. Temperature: For efficient execution of photosynthesis, it is important to have a temperature range between 25° to 35° C.

4. Water: As water is an important factor in photosynthesis, its deficiency can lead to problems in the intake of carbon dioxide. The scarcity of water leads to the refusal of stomatal opening to retain the amount of water they have stored inside.

5. Pollution: Industrial pollutants and other particulates may settle on the leaf surface. This can block the pores of stomata which makes it difficult to take in carbon dioxide.

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★Photosynthetic pigments

There are four different types of pigments present in leaves:

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1. Chlorophyll a

2. Chlorophyll b

3. Xanthophylls

4. Carotenoids

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