Which group of plantae represents gametophytic plant body with dependent sporophyte?

Options

A. Algae and bryophytes
B. Bryophytes and pteridophytes
C. Liverworts and mosses
D. Ferns and cycades

Answer

To answer the question "Which group of plantae represents a gametophytic plant body with a dependent sporophyte?", we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Terms**:
- **Gametophyte**: The gametophyte is the haploid (N) phase of the plant life cycle that produces gametes (sperm and eggs).
- **Sporophyte**: The sporophyte is the diploid (2N) phase that produces spores through meiosis.

2. **Identify the Groups of Plantae**:
- The groups mentioned in the question include algae, bryophytes, pteridophytes, and others.
- Algae primarily exist as gametophytes and do not have a dependent sporophyte.
- Bryophytes (like mosses and liverworts) have a dominant gametophyte stage and a sporophyte that is dependent on the gametophyte for nutrition and support.

3. **Analyze the Life Cycle**:
- In bryophytes, the sporophyte is attached to and dependent on the gametophyte for its entire life. This is a key characteristic of bryophytes.
- Pteridophytes (like ferns) have a dominant sporophyte phase, which is independent of the gametophyte.

4. **Conclusion**:
- Based on the analysis, the group of plantae that represents a gametophytic plant body with a dependent sporophyte is **Bryophytes**.

### Final Answer:
The correct answer is **Bryophytes**.

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