LIFE SCIENCE

Detailed explanation-1: -Radicle is defined as the embryonic root of the plant, which develops into the future root of the plant. It is the first part of the embryo to develop into the root system of plants.

Detailed explanation-2: -Radicle is the portion of an embryo emerging from the seed that gives rise to the root system of a plant. It emerges from seed through the micropyle and grows downward in the soil. Radicle emerges first followed by the plumule.

Detailed explanation-3: -The embryo consists of two seedling leaves (cotyledons), a nascent shoot (epicotyl), and an embryonic root (radicle) at the base of the embryonic shoot (hypocotyl). The embryo is surrounded by a nutritive endosperm, which constitutes the bulk of the seed.

Detailed explanation-4: -The radicle grows first because the roots need to stabilise the plant before the leaves and stem grow, and the roots gather water and nutrients from the soil which are needed to continue growing.