Function of stem is to :-

Options

A. Bear leaves and branches
B. Conduction of water and minerals
C. Conduction of storage of food
D. All

Answer

### Step-by-Step Solution:

1. **Understanding the Structure of the Stem**:
- The stem consists of nodes and internodes. Nodes are the points where leaves, branches, or flowers arise, while internodes are the segments between the nodes.

2. **Function of the Stem**:
- **Bearing Leaves and Branches**: The primary function of the stem is to support the plant by holding leaves and branches, which are essential for photosynthesis and growth.
- **Conduction of Water and Minerals**: The stem plays a crucial role in transporting water and minerals from the roots to the leaves. This function is primarily carried out by the xylem tissue present in the stem.
- **Conduction of Storage Food**: Some stems are modified to store food, such as tubers (e.g., potatoes) and rhizomes (e.g., ginger). During unfavorable conditions, the stored food can be transported back to the upper parts of the plant for use.

3. **Conclusion**:
- Therefore, the functions of the stem include bearing leaves and branches, conducting water and minerals, and storing food. Hence, the correct answer is that the function of the stem encompasses all these roles.