Question

The given diagram represents the germination and seedling development in beam.

Identify $A,B,C$ and $D$ marked in the given figure.

• A. (A) - Plumule, (B) - Cotyledons, (C) - Hypocotyl, (D) - Epicotyl
• B. (A) - Radicle, (B) - Seed coat, (C) - Epicotyl, (D) - Hypocotyl
• C. (A) - Hypocotyl, (B) - Cotyledons, (C) - Epicotyl, (D) - Root hair
• D. (A) - Root hair, (B) - Cotyledons , (C) - Plumule, (D) - Hypocotyl

Answer 1

Answer: (B)

In the given figure of germination and seedling development in bean, the structure marked as $A,B,C$ and $D$ are respectively radicle, seed coat, epicotyl and hypocotyl. Radicle is the part of a plant embryo that develops into the primary root. Seed coat is the protective outer coat of a seed. Epicotyl is the region of an embryo or seedling stem above the cotyledon. Hypocotyl is the part of the stem of an embryo plant beneath the stalks of the seed leaves or cotyledons and directly above the root.