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09/10/2021 8:17 pm
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(a) Photosynthesis converts energy X into energy Y. What are X and Y?
(b) State the various steps involved in the process of photosynthesis.
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09/10/2021 8:18 pm
(a) X is sunlight energy and Y is chemical energy.
(b) The photosynthesis takes place in the following three steps:
(i) Absorption of sunlight energy by chlorophyll.
(ii) Conversion of light energy into chemical energy and splitting of water into hydrogen and oxygen by light energy.
(iii) Reduction of carbon dioxide by hydrogen to form carbohydrates like glucose by utilising the chemical energy.