Question

Identify the parts labelled as A, B, C and D in the given figure and select the correct option from the codes given below.

• A. Seed coat, Scutellum, Epicotyl, Radicle
• B. Seed coat, Scutellum, Hypocotyl, Plumule
• C. Seed coat, Cotyledon, Endosperm, Radicle
• D. Seed coat, Endosperm, Cotyledon, Radicle

Answer 1

The correct option is D Seed coat, Endosperm, Cotyledon, Radicle

The given figure represents the castor seed. It is an oblong mottled brown endospermic and dicotyledonous seed. A thick hard but brittle testa covers the seed. A thin perisperm lies below it and around the kernel. A white oily endosperm lies below the perisperm. It stores food as oil drops and proteins. The endosperm is the source of castor oil. Embryo lies in the centre of the seed. It consists of a short embryo axis bearing two thin semitransparent oval cotyledons, a small indistinct plumule and a knob-shaped radicle.