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Question
Why is plant food not produced in any other parts of the plant except the green ones?
Solution
Plant food is produced by a special process known as photosynthesis. The process of photosynthesis requires specialised structures called chloroplasts and these structures are found only in green regions of plants. The green colour of specific parts of plants is due to the presence of chlorophyll pigment present in these chloroplasts. Structures in plants which do not contain chloroplast, do not appear green in colour and are not capable of producing food.
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In photosynthesis, solar energy is absorbed by the pigment called ______.
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(b) What is the colour of this pigment?
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(a) conversion of light energy into chemical energy
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In the given diagram of a closed stomata: (1), (2), (3) and (4) respectively are:
