Explain the importance of the following in photosynthesis:
(i) Light
(ii) Carbon (IV) oxide
(iii) Chlorophyll.


Answer:

(i) Light
-Light provides energy needed to split water molecules into oxygen gas and hydrogen atoms i.e process called photolysis. #2H_2Orightarrow2H_2+O_2#
-Light provides energy that combines adenosine diphosphate with inorganic phosphate to form energy rich compound called adenosine triphosphate.
ADP+POI +E#rightarrow#ATP/For formation of ATP used in dark stage.

(ii) Carbon (IV) oxide
#CO_2# combines with hydrogen atoms to form simple sugars or simple carbohydrates.

(iii) Chlorophyll.
Chlorophyll traps light energy for photolysis.


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