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Read the given statements and select the...

Read the given statements and select the correct option.
(i) Hydrophytes possess aerenchyma to support themselves in water.
(ii) Seeds of Viscum are positively photoblastic as they germinate only in presence of light.
(iii) Hygroscopic water is the only soil water available to roots of plant growing in soil as it is present inside the micropores.
(iv) High temperature reduces use of water and solute absorption by roots.

A

I,ii and iii only

B

ii,iii and iv

C

ii and iii only

D

I and ii only

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Knowledge Check

  • In soil water available for plants is

    A
    gravitational water
    B
    chemically bound water
    C
    capillary water
    D
    hygroscopic water

  • Read the given statements and select the correct option. (i) Loamy soil is best suited for plant growth as it contains a mixture of silt, sand and clay. (ii) The process ofhumification is slow in case of organic remains containing a large amount oflignin and cellulose. (iii) Capillary water is the only water available to plant roots as it is present inside the micropores. (iv) Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chi a and chi b are usually thinner leaves.

    A
    i, ii and iii only
    B
    ii, iii and iv only
    C
    i, ii and iv only
    D
    ii and iii only

  • Read the given statements and select the correct option. (i) Loamy soil is best suited for plant growth as it contains a mixture of silt, sand and clay. (ii) The process ofhumification is slow in case of organic remains containing a large amount of lignin and cellulose. (iii) Capillary water is the only water available to plant roots as it is present inside the micropores. (iv) Leaves of shade plant have more total chlorophyll per reaction centre, low ratio of chl a and chl b are usually thinner leaves.

    A
    i, ii and iii only
    B
    ii, iii and iv only
    C
    i, ii and iv only
    D
    ii and iii only

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    Read the statement and select the correct terminolgy for the same: "Carrying away of inorganic compounds of soil by water".

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