Biology
Grade-9
Easy
Question
________ molecules are stored in CAM plants during night.
- Water
- Carbon dioxide
- Oxygen
- Glycogen
Hint:
- CAM pathway stands for Crassulacean Acid Metabolism as it was first observed in the Crassulaceae plants. They undergo CAM photosynthesis to adapt to the arid climatic conditions. Pineapple, bryophyllum, agave, aloe, etc are the examples of the CAM plants.
The correct answer is: Carbon dioxide
- In CAM, after carbon dioxide is fixed at night, it is stored as the four-carbon compound malate. Carbon dioxide is released during daylight when the light-dependent reactions of photosynthesis take place.
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