Which one is wrongly matched

Options

A. Unicellular organism -Chlorella
B. Gemma cups-Marchantia
C. Biflagellate Zoospores-Brown algae
D. Uniflagellate gametes-Polysiphonia

Answer

To determine which option is wrongly matched, we will analyze each option step by step.

### Step 1: Analyze the first option - Chlorella
- **Statement**: Chlorella is a unicellular organism.
- **Analysis**: Chlorella is indeed a unicellular green alga belonging to the Chlorophyceae class. It contains chlorophyll A and B, which are essential for photosynthesis. Additionally, it is used as a food source for humans.
- **Conclusion**: This statement is correct.

### Step 2: Analyze the second option - Gamma cup in Marchantia
- **Statement**: Gamma cup is present in Marchantia.
- **Analysis**: The gamma cup (or gemma cup) is a structure found in Marchantia, which is a liverwort. It is involved in asexual reproduction by producing gemmae.
- **Conclusion**: This statement is correct.

### Step 3: Analyze the third option - Brown algae and biflagellated zoospores
- **Statement**: Brown algae have biflagellated zoospores.
- **Analysis**: Brown algae do possess biflagellated zoospores, which have two flagella. These flagella are usually of unequal lengths and are attached laterally, aiding in movement.
- **Conclusion**: This statement is correct.

### Step 4: Analyze the fourth option - Polysiphonia and uniflagellate gametes
- **Statement**: Polysiphonia has uniflagellate gametes.
- **Analysis**: Polysiphonia is a red alga, and it does not have uniflagellate gametes. Instead, it reproduces sexually through non-motile gametes.
- **Conclusion**: This statement is incorrect.

### Final Conclusion
The wrongly matched option is **D: Polysiphonia and uniflagellate gametes**.

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