Concept: This question tests your understanding of plant morphology, specifically the origin and arrangement of leaves on a stem.

Why (C) is correct: Leaves are lateral, generally flattened structures borne on the stem. They originate from the shoot apical meristem, which is the growing tip of the stem. These leaf primordia (developing leaves) are arranged in an acropetal order, meaning the younger leaves are at the apex (top) and the older leaves are at the base (bottom) of the stem.

Why other options are wrong:

• (A) root apical meristem; acropetal: Roots do not bear leaves; the root apical meristem is responsible for root growth.
• (B) floral meristem; basipetal: Floral meristem produces flowers, not typical leaves, and their arrangement is not typically described as basipetal in this context.
• (D) internodes; basipetal: Internodes are the regions between nodes; leaves originate from nodes, not internodes. Basipetal arrangement means older leaves are at the apex, which is incorrect for typical leaf development.

Common Mistake: Students often confuse acropetal and basipetal arrangements. Remember 'acro' means apex, so acropetal means towards the apex (youngest at top).

NEET Tip / Mnemonic: Think of 'A' for Acropetal and 'A' for Apex – the youngest leaves are at the Apex in acropetal succession.

Correct Answer: (C)