Question

41. Give a brief description of the process of synthesis of food in green plants. What is chlorophyll? What is
the role of chlorophyll in photosynthesis?
42. (a) How do plants get carbon dioxide for making food by photosynthesis ?
(b) Explain how, water and minerals are transported to the leaves of a plant to be used in food making by
photosynthesis.
43. Describe briefly how nutrients are replenished in the soil ? How is the growing of a leguminous crop in
the fields beneficial to the farmer ?
44. (a) A person observes that some plants have deep red, violet and brown coloured leaves. Can these leaves
carry out photosynthesis ? Give reason for your answer.
(b) Describe the importance of photosynthesis for the existence of life on the earth.
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Answer 1

chlorophyl is the green pigment in the plants.

clorophyl act as the kitchen of plant in photo synthesis.