Which of the following statements is characteristic feature of CAM plants

Release oxygen during day

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Release oxygen during night

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Open their stomata during night

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Do not respire during day

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Solution

The correct option is C Open their stomata during night
Certain plants which have Crassulacean Acid metabolism (CAM) are known as CAM plants. They have scotoactive stomata. Their stomata remain open during night. It is characteristic feature of CAM plants. These plants fix carbon dioxide during night but form sugars only during day when RuBisCO is active. Sedum, Kalanchoe, Pineapple, Opuntia are the examples of CAM plants. These plants also perform double carbon dioxide fixation. The carbon dioxide acceptor in CAM plants is Phosphoenol pyruvic acid (PEP) during night and Ribulose bisphosphate is carbon dioxide acceptor during day time. The first stable product in case of CAM plants is Oxalo acetic acid (OAA).

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Similar questions

Which of the following is not a characteristic feature during mitosis in somatic cells?

(i) In plants, respiration happens during the night time only, while photosynthesis happens during the day.

(ii) In humans, the exchange of gases takes place in the alveoli.

(iii) Haemoglobin has a greater affinity for oxygen than carbon dioxide.

(iv) Aquatic organisms use the oxygen in the surrounding atmosphere for respiration.

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