Silicon is present in large quantity in some members of

Options

A. Monera
B. Gramineae
C. Thallophyta
D. Bryophyta

Answer

**Step-by-Step Solution:**

1. **Understanding the Question**: The question asks about which group of plants contains silicon in large quantities. We need to analyze the options provided: Monera, Gramineae, Thallophyta, and Bryophyta.

2. **Analyzing the Options**:
- **Monera**: This group includes unicellular organisms like bacteria. They do not require silicon in large quantities.
- **Gramineae (Poaceae)**: This family includes grasses and cereals such as rice, wheat, and corn. These plants are known to require silicon for various physiological functions, including drought tolerance and enhancing production rates.
- **Thallophyta**: This group includes algae and fungi. They generally do not have a significant requirement for silicon.
- **Bryophyta**: This group includes mosses and liverworts, which also do not require silicon in large quantities.

3. **Identifying the Correct Answer**: Among the options, Gramineae (Poaceae) is the group that is known to contain silicon in large quantities, especially in cereal crops like rice.

4. **Conclusion**: Therefore, the correct answer to the question is Gramineae (Poaceae).

**Final Answer**: Silicon is present in large quantity in some members of Gramineae (Poaceae).

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