Which of the following pair(s) is false?

Options

A. Bladderwort-Insectivorous
B. Venus fly trap-insectivorous
C. Cuscuta-Saprophytic
D. Cell wall of plant cell-mainly cellulosic

Answer

To determine which of the following pairs is false, we will analyze each option step by step.

### Step-by-Step Solution:

1. **Option 1: Bladderwort**
- Statement: "Bladderworts are insectivorous."
- Analysis: This statement is true. Bladderworts are indeed insectivorous plants that capture and digest small aquatic organisms, including insects, to obtain nutrients, particularly nitrogen.

2. **Option 2: Venus Flytrap**
- Statement: "Venus Flytrap is insectivorous."
- Analysis: This statement is also true. The Venus Flytrap is well-known for its ability to trap and digest insects, which it uses to supplement its nutrient intake in nitrogen-poor soils.

3. **Option 3: Cuscuta**
- Statement: "Cuscuta is saprophytic."
- Analysis: This statement is false. Cuscuta, commonly known as dodder, is a parasitic plant that attaches to host plants to obtain nutrients. It does not grow on decaying organic matter, which is characteristic of saprophytic plants.

4. **Option 4: Cell wall of plant cells**
- Statement: "The cell wall is mainly composed of cellulose."
- Analysis: This statement is true. The primary component of the plant cell wall is cellulose, which provides structural support to the plant.

### Conclusion:
The false pair is **Option 3: Cuscuta is saprophytic**. Cuscuta is a parasitic plant, not saprophytic.

### Final Answer:
**Option 3 is false.**

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