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Assertion: The sex organs in the bryophy...

Assertion: The sex organs in the bryophytesare jacketed.
Reason: Bryophytes are land plants.

A

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

B

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

C

If the assertion is true but the reason is false

D

If both the assertion and reason are false

Text Solution

Verified by Experts

The correct Answer is:
a

Bryophytes are a group of non-vascular land plants. The sex organs in the bryophytes are ulticellular and jacketed. The jacket of sterile cells around the sperms and eggs is an adaptation to a life on land. It protectes the sex cells against the drying effects of air.
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What is peculiar about sex organs in bryophytes ?

Assertion: Bryophytes are called asterrestrial amphibians. Reason: Bryophytes require an external layer of water on the soil surface for their existence.

Knowledge Check

  • Sex organ in bryophytes are :-

    A
    Unicellular and jacketed
    B
    Unicellular and non-jacketed
    C
    Multicellular and jacketed
    D
    Multicellular and non jacketed
  • Male sex organs of bryophytes are

    A
    Antheridium
    B
    Archegonium
    C
    Stamen
    D
    Carpel
  • Female sex organs of bryophytes are called

    A
    Oogonia
    B
    Ascogonia
    C
    Archaegonia
    D
    Antheridia.
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    Bryophytes are not tall plants due to

    Assertion: The bryophytes are also known as vascular cryptogams. Reason: Pteridophytes are non vascular plants.

    Assertion : Bryophytes are of great ecological importance. Reason: Bryophytes help in colonisation (succession) on bare rocks/soil.

    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.

    Assertion: Bryophytes are not a successul land plants. Reason: In bryophytes there is lack of vascular system.