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Bryophytes are not characterised by...

Bryophytes are not characterised by

A

sporophyte parasitic over gametophyte

B

independent gametophyte

C

absence of vascular tissues

D

independent sporophyte

Text Solution

AI Generated Solution

The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Bryophytes**: Bryophytes are a group of non-vascular plants that include mosses, liverworts, and hornworts. They are often referred to as the amphibians of the plant kingdom because they require water for reproduction. 2. **Dominant Phase**: In bryophytes, the dominant phase of the life cycle is the gametophyte phase, which is haploid (n). This phase is responsible for producing gametes (sperm and eggs). 3. **Sporophyte Dependency**: The sporophyte phase (diploid, 2n) of bryophytes is not independent; it is dependent on the gametophyte for nourishment. The sporophyte is attached to the gametophyte and derives its nutrients from it, making it parasitic over the gametophyte. 4. **Absence of Vascular Tissue**: Bryophytes lack vascular tissues (xylem and phloem), which are present in higher plants. This absence is a characteristic feature of bryophytes, making them less efficient in transporting water and nutrients. 5. **Evaluating the Options**: - **Sporophytes**: Correctly characterized as dependent on the gametophyte. - **Parasitic over Gametophyte**: Correctly characterized as the sporophyte is dependent on the gametophyte. - **Independent Gametophyte**: Correctly characterized as the gametophyte is independent and photosynthetic. - **Absence of Vascular Tissue**: Correctly characterized as bryophytes lack vascular tissues. - **Independent Sporophyte**: This is incorrect because the sporophyte is not independent; it relies on the gametophyte for sustenance. 6. **Conclusion**: The statement that bryophytes are characterized by an "Independent Sporophyte" is false. Therefore, this is the correct answer to the question. ### Final Answer: Bryophytes are not characterized by an **Independent Sporophyte**. ---
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