Which one of the following is not a function of roots for the plant?

Options

A. (a) To store food
B. (b)To provide humus
C. (c)To give support to the plant
D. (d)To absorb water and minerals

Answer

To determine which option is not a function of roots in plants, we can follow these steps:

### Step 1: Understand the Functions of Roots
Roots are essential structures of plants that perform several key functions:
- **Absorption of Water and Nutrients**: Roots take up water and minerals from the soil, which are vital for the plant's growth and development.
- **Support**: Roots anchor the plant in the soil, providing stability and support for the above-ground parts of the plant.
- **Storage**: Some roots can store food and energy in the form of carbohydrates.

### Step 2: Analyze Each Option
Now, let’s analyze the options provided in the question:
- **Option A: To store food** - This is a function of roots, as some roots store carbohydrates and nutrients.
- **Option B: To provide humus** - This is not a function of roots. Humus is organic matter in the soil, and while roots contribute to soil health, they do not directly provide humus.
- **Option C: To give support to the plant** - This is indeed a function of roots, as they anchor the plant.
- **Option D: To absorb water and minerals** - This is a primary function of roots.

### Step 3: Identify the Correct Answer
From the analysis:
- Options A, C, and D are functions of roots.
- Option B does not describe a function of roots.

Thus, the correct answer is **Option B: To provide humus**.

### Final Answer
**The correct answer is Option B: To provide humus.**

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