Photosynthesis is the process of manufacture of food from carbon dioxide and water in the presence of sunlight and chlorophyll by green plants.
Significance of photosynthesis :
1. It helps in the synthesis of food.
2. Consumption of carbon dioxide and release of oxygen.
Characteristics of CAM plants are :
(1) Optimum temperature is 35°C.
(2) These have large vacuoles in mesophyll cells.
(3) Enzyme used by them is PEP carboxylase.
(4) These have low productivity.
(5) Their stomata open during night.