In plants respiration is greater in

Options

A. Root apices
B. Shoot apices
C. Vegetative and floral buds
D. All the above parts

Answer

To answer the question "In plants respiration is greater in," we need to analyze the different parts of the plant mentioned in the options and determine where respiration occurs at a higher rate.

### Step-by-Step Solution:

1. **Understanding Plant Respiration**:
- Respiration in plants is a process where they convert glucose and oxygen into energy, releasing carbon dioxide and water as byproducts. This process is crucial for growth and development.

2. **Identifying Active Growing Parts**:
- The rate of respiration is highest in the parts of the plant that are actively growing. These parts have a high metabolic activity and require more energy.

3. **Evaluating the Options**:
- **Option 1: Root Apices**:
- The root apices (tips of the roots) are actively growing regions where respiration is significant as they absorb nutrients and water from the soil.
- **Option 2: Shoot Apices**:
- The shoot apices (tips of the shoots) are also areas of active growth, where new leaves and stems are formed, leading to high respiration rates.
- **Option 3: Vegetative and Floral Buds**:
- Both vegetative and floral buds are regions of growth and development, where respiration is necessary for the formation of new structures.
- **Option 4: All the Above Parts**:
- Since all the mentioned parts (root apices, shoot apices, and vegetative and floral buds) are actively growing, they all exhibit high rates of respiration.

4. **Conclusion**:
- Since respiration is greater in all the mentioned parts due to their active growth, the correct answer is **Option 4: All the Above Parts**.

### Final Answer:
In plants, respiration is greater in **all the above parts** (root apices, shoot apices, vegetative and floral buds).