(i) IT is an anabolic process in which food substances are synthesis the food substances are synthesized.
(ii) It used carbon dioxide to synthesise the food and release oxygen.
(iii) It occurs only in the presence of light.
(iv) It occurs only in chlorophyll cells. Respiration
(i) IT is a catabolic process in which food substances are broken down.
(ii) It uses oxygen to oxidize the food substance sand releases carbon dioxide and energy.
(iii) It occurs at all times of day and night.
(iv) It occurs in all living cells.