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Succulents are known to keep their stoma...

Succulents are known to keep their stomata closed during the day to check transpiration. How do they meet their photosynthetic `CO_(2)` requirements ?

Text Solution

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Succulent plants grow in dry and xeric conditions so, they have to shut down the stomata during day time, to prevent water loss through transpiration. So and the gaseous exchange does not take place.
Thus plants have developed the mechanism to fix `CO_(2)` during night in the form of malic acid, which is a 4 carbon compound and store `CO_(2)`, release it during day, inside the photosynthetic cells.
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Knowledge Check

  • Which one keeps its stomata open during and closed

    A
    Cactus
    B
    water Lily
    C
    Ivy
    D
    Hibiscus

  • Stomata open at night and close during the day time in

    A
    mesophytes
    B
    hydrophytes
    C
    succulents
    D
    shurbs

  • (A) : Many desert plants keep their stomata closed during day time. (R) : They possess a special photosynthetic pathway (CAM).

    A
    If both (A) and (R) are true but (R) is not the correct explanation of (A).
    B
    If both (A) and (R) are true and (R) is the correct explanation of (A).
    C
    If (A) is true but (R) is false.
    D
    If both (A) and (R) are false.

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