Which of the following plants have adventitious roots modified to store food ?

Options

A. Carrot, Sweet potato
B. Potato, Maize
C. Ipomoea, Asparagus
D. Turnip, Radish

Answer

To determine which plants have adventitious roots modified to store food, let's analyze the options provided step by step.

### Step-by-Step Solution:

1. **Understand the Types of Roots**:
- Adventitious roots are roots that arise from an unusual place, such as stems or leaves, rather than from the primary root.
- Modified roots can serve various functions, including storage of food.

2. **Examine Each Option**:
- **Option 1: Carrot and Sweet Potato**:
- Carrot is a tap root, which is not adventitious. It is a storage root but does not fit the criteria.
- Sweet potato is an adventitious root and is modified to store food (it is a tuberous root).
- Conclusion: This option does not qualify because of the carrot.

- **Option 2: Potato and Maize**:
- Potato is a stem modification (a tuber) and does not have adventitious roots for food storage.
- Maize has adventitious roots, but they are primarily for support, not for storage.
- Conclusion: This option is incorrect.

- **Option 3: Ipomoea and Asparagus**:
- Ipomoea (sweet potato) has adventitious roots that are tuberous and store food.
- Asparagus has adventitious roots that are fasciculated but do not primarily function for food storage.
- Conclusion: This option is partially correct but does not fully meet the criteria since asparagus does not store food.

- **Option 4: Turnip and Radish**:
- Turnip is a taproot and is not adventitious.
- Radish is also a taproot and does not qualify as adventitious.
- Conclusion: This option does not qualify.

3. **Final Evaluation**:
- The only option that includes a plant with adventitious roots modified to store food is **Ipomoea** (sweet potato).
- Asparagus, while having adventitious roots, does not store food, so it does not fully meet the criteria.

### Answer:
The correct answer is **Ipomoea** (sweet potato) as it has adventitious roots modified to store food.