Which of the following is not a type of primary meristematic cell found in apical meristems?

• A. Procambium
• B. Sclerenchyma
• C. Protoderm
• D. Ground meristem

Answer: (B)

Verified step by step guidance

1. Understand the role of apical meristems: Apical meristems are regions of actively dividing cells found at the tips of roots and shoots in plants. They are responsible for primary growth, which increases the length of the plant.
2. Identify the types of primary meristematic cells: Apical meristems contain three types of primary meristematic cells: protoderm, procambium, and ground meristem. These cells differentiate into various tissues as the plant grows.
3. Define each type of primary meristematic cell: Protoderm gives rise to the epidermis, procambium develops into vascular tissues (xylem and phloem), and ground meristem forms ground tissues such as parenchyma, collenchyma, and sclerenchyma.
4. Recognize the role of sclerenchyma: Sclerenchyma is a type of ground tissue that provides structural support to the plant. It is not a primary meristematic cell but rather a differentiated cell type that arises from the ground meristem.
5. Determine which option is not a primary meristematic cell: Since sclerenchyma is a differentiated cell type and not a primary meristematic cell found in apical meristems, it is the correct answer to the question.