Biology
Grade-9
Easy
Question
In which of the following plants photosynthesis begins at night?
- C4 Plants
- C3 Plants
- CAM Plants
- Halophytes
Hint:
- Some plants perform photosynthesis during night as to prevent water loss at day time.
The correct answer is: CAM Plants
- CAM plants are the plants, which fix carbon dioxide by CAM pathway or Crassulacean acid metabolism
- The CAM pathway is adapted to minimise water loss and photorespiration. Examples of CAM plants include cactus, pineapple, etc.
- In CAM plants stomata are open at night and they absorb carbon dioxide at night to reduce water loss during the daytime.
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