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Cambium is a lateral meristem, as it...

Cambium is a lateral meristem, as it

A

increase girth

B

forms lateral branches

C

lies on nodes

D

increase length

Text Solution

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The correct Answer is:
### Step-by-Step Solution: 1. **Understanding Cambium**: Cambium is a type of meristematic tissue found in plants. It is responsible for secondary growth, which increases the thickness or girth of the plant. 2. **Identifying Lateral Meristems**: Lateral meristems are found in the mature regions of roots and shoots. They contribute to the increase in the girth of the plant rather than its length. 3. **Functions of Cambium**: The cambium specifically produces secondary tissues, which include secondary xylem (wood) and secondary phloem. This process is essential for the plant's growth in width. 4. **Differentiating Between Meristem Types**: - **Apical Meristems**: These are responsible for the elongation of the plant (increasing height). - **Intercalary Meristems**: These are found at the nodes and internodes and also contribute to elongation. - **Lateral Meristems (like Cambium)**: These are responsible for increasing the girth of the plant. 5. **Evaluating the Options**: - **Increased Girth**: This is true for cambium as it contributes to the thickness of the plant. - **Forms Lateral Branches**: Cambium does not directly form lateral branches; it contributes to the girth. - **Lies on Nodes**: Cambium is not located at nodes; intercalary meristems are. - **Increased Length**: This is not a function of cambium; it is related to apical meristems. 6. **Conclusion**: Based on the functions and characteristics of cambium, it is classified as a lateral meristem since it primarily contributes to the increase in girth of the plant. ### Final Answer: Cambium is a lateral meristem because it increases the girth of the plant by producing secondary tissues. ---
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