Read the given statements and select the correct option.Statement 1: M...
The given statements are incorrect. Here's why:
Statement 1: The main plant body of bryophytes is not sporophytic, but gametophytic. Bryophytes are non-vascular plants that include mosses, liverworts, and hornworts. They have a dominant gametophyte stage in their life cycle, meaning the plant body we commonly observe is the gametophyte. The sporophyte is a smaller and simpler structure that is usually attached to and dependent on the gametophyte for nutrition.
Statement 2: The main plant body of pteridophytes is not gametophytic, but sporophytic. Pteridophytes are vascular plants that include ferns and horsetails. They have a dominant sporophytic stage in their life cycle, meaning the plant body we commonly observe is the sporophyte. The gametophyte is a smaller and simpler structure that is independent of the sporophyte.
So, option D is correct: Both statements 1 and 2 are incorrect.
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Read the given statements and select the correct option.Statement 1: M...
Main plant body is gametophytic in bryophytes and sporophytic in pteridophytes.
Read the given statements and select the correct option.Statement 1: M...
Understanding Bryophytes and Pteridophytes
To clarify the statements regarding bryophytes and pteridophytes:
Statement 1: Main Plant Body of Bryophytes
- Bryophytes, which include mosses and liverworts, have a dominant gametophytic stage.
- The main plant body is haploid (gametophyte) and is responsible for photosynthesis and nutrient absorption.
- The sporophyte is typically dependent on the gametophyte for nutrition and is usually smaller.
Statement 2: Main Plant Body of Pteridophytes
- Pteridophytes, such as ferns, have a dominant sporophytic stage.
- The main plant body is diploid (sporophyte) and is capable of photosynthesis and growth.
- The gametophyte is reduced and independent in some species, but the dominant form is the sporophyte.
Conclusion on the Statements
- Both Statement 1 and Statement 2 are incorrect:
- Bryophytes have a gametophytic main body, not sporophytic.
- Pteridophytes have a sporophytic main body, not gametophytic.
Thus, the correct answer is option 'D': Both statements are incorrect.
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