Given below are two statements.One is labeled Assertion(A) and the other is labeled Reason(R).Assertion (A): In bryophytes, the sporophyte is not free-living but attached to the gametophyteReason (R): The sporophyte derives nourishment from the photosynthetic gametophyte, which is the main plant body and is haploid.
Question
Given below are two statements.One is labeled Assertion(A) and the other is labeled Reason(R).Assertion (A): In bryophytes, the sporophyte is not free-living but attached to the gametophyteReason (R): The sporophyte derives nourishment from the photosynthetic gametophyte, which is the main plant body and is haploid.
Solution
Assertion (A): True. In bryophytes, the sporophyte is indeed not free-living but attached to the gametophyte. This is a characteristic feature of bryophytes where the sporophyte is dependent on the gametophyte for its nutrition and water supply.
Reason (R): True. The sporophyte is dependent on the gametophyte for its nourishment. The gametophyte is the dominant phase in the life cycle of bryophytes and carries out photosynthesis, providing the necessary nutrients for the sporophyte.
The relationship between Assertion (A) and Reason (R): The reason is the correct explanation for the assertion. The sporophyte is not free-living and is attached to the gametophyte because it relies on the gametophyte for nourishment. The gametophyte is the main plant body in bryophytes and is haploid, carrying out photosynthesis to provide nutrients for the sporophyte.
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