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Assertion: The distribution of bryophyte...

Assertion: The distribution of bryophytes and pteridophytes is limited.
Reason: In bryophytes and pteridophytes water is required for the transport of male gamete and fertilisation.

A

If both assertion and reason are true and the reason is the correct explanation of the assertion.

B

If both assertion and reason are true but reason is not the correct explanation of the assertion.

C

If assertion is true but reason is false.

D

If both assertion and reason are false.

Text Solution

Verified by Experts

The correct Answer is:
A
• Pollination by water is quite rare in flowering plants and is limited to about 30 genera, mostly monocotyledons.
• As against this, water is a regular mode of transport for the male gametes among the lower plant groups such as algae, bryophytes and pteridophytes.
• It is believed, particularly for some bryophytes and pteriodophytes that their distribution is limited Be cause of the need for water for the transport of male gametes and fertilisation.
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Knowledge Check

  • In bryophytes and pteridophytes, transport of male gametes requires

    A
    Wind
    B
    Insects
    C
    Birds
    D
    Water

  • In bryophytes and pteridophytes, transport of male gametes require

    A
    Birds
    B
    Water
    C
    Wind
    D
    Insects

  • In bryophytes and pteridophytes, transport of male gam etes requires

    A
    Wind
    B
    Insects
    C
    Birds
    D
    Water

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