Biology
Grade-9
Easy
Question
In which of the following plants is carbon dioxide converted into malic acid and stored in vacuoles?
- C4 Plants
- C3 Plants
- CAM Plants
- Halophytes
Hint:
CAM plants open stomata during night allowing carbon dioxide to enter the plant
The correct answer is: CAM Plants
The correct option is CAM
- CAM plants open stomata during night allowing carbon dioxide to enter the plant. Carbon dioxide fixation occurs during night. Carbon dioxide combines with PEP in presence of PEP carboxylase to form oxaloacetate. This is converted into malic acid and is stored in vacuoles during night.
- During day time, the malic acid comes out of vacuoles and releases carbon dioxide which is utilised to synthesise glucose.
- CAM plants open stomata during night allowing carbon dioxide to enter the plant. Carbon dioxide fixation occurs during night. Carbon dioxide combines with PEP in presence of PEP carboxylase to form oxaloacetate. This is converted into malic acid and is stored in vacuoles during night.
- During day time, the malic acid comes out of vacuoles and releases carbon dioxide which is utilised to synthesise glucose.
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