A plant is kept in 300ppm $C O_{2}$ concentration what will happen to it?

Plant will die soon.

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Plant will grow but will not die.

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Plant will show normal photosynthesis.

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Respiration will be greatly decreased.

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Solution

The correct option is C Plant will show normal photosynthesis.
Plants can grow up to 50% faster in concentrations of 1,000 ppm CO $_{2}$ , when compared with ambient conditions, though this assumes no change in climate and no limitation on other nutrients. Elevated CO $_{2}$ levels cause increased growth reflected in the harvestable yield of crops with wheat, rice, rice and soybean all showing increases in yield of 12-14% under elevated CO $_{2}$ in 'FACE experiments'.

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C O_{2}

If the rate of respiration becomes more than the rate of photosynthesis, plants will :

(a) continue to live, but will not be able to store food.

(b) be killed instantly.

(d) stop growing and die gradually of starvation.

C O_{2} + H_{2} O ⇌ H_{2} C O_{3} ⇌ H^{+} + H C O_{3}^{-}

C O_{2}

C O_{2}

What will happen if plant cell is kept in isotonic solution

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