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Grass stem elongates by the activities o...

Grass stem elongates by the activities of

A

Apical meristem

B

Intercalary meristem

C

Lateral meristem

D

Primordial metistm

Text Solution

AI Generated Solution

The correct Answer is:
To solve the question "Grass stem elongates by the activities of," we need to analyze the different types of meristems and their functions. Here’s a step-by-step breakdown of the solution: ### Step 1: Understand the Types of Meristems Meristems are regions in plants where cells are actively dividing, leading to growth. There are three main types of meristems: - **Apical Meristem**: Located at the tips of roots and shoots, responsible for primary growth (lengthening). - **Intercalary Meristem**: Found at the nodes or internodes of stems, particularly in grasses, and contributes to the elongation of stems. - **Lateral Meristem**: Located on the sides of stems and roots, responsible for secondary growth (thickening). ### Step 2: Identify the Function of Each Meristem - **Apical Meristem**: Growth of roots and shoots. - **Intercalary Meristem**: Responsible for the elongation of the stem, particularly in grasses. - **Lateral Meristem**: Involved in increasing the thickness of the plant. ### Step 3: Focus on Grass Stem Since the question specifically asks about the elongation of the grass stem, we need to determine which meristem is responsible for this process. ### Step 4: Conclusion The intercalary meristem is primarily responsible for the elongation of the grass stem, as it is located at the nodes and internodes, allowing for rapid growth in height. ### Final Answer The correct answer is **Option B: Intercalary Meristem**. ---
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Knowledge Check

  • Bamboo or grass stem elongates by the activity of :

    A
    primary meristem
    B
    apical meristems
    C
    secondary meristem
    D
    intercalary meristems
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