Question

3.
Differentiate between the following pairs of tern
(a) Radicle and plumule.
(b) Hilum and micropyle.
(c) Testa and tegmen.​

Answer 1

Answer:

B. Hilum and micropyle are two characteristic markers located on the seed coat. Hilum shows the attachment site of the ovule to the ovary wall. On the other hand, micropyle shows the point from which the pollen tube entered the ovary during the fertilization. Both hilum and micropyle are important for the seed.0

Explanation:

Answer 2

Answer:

Radicle vs Plumule

The radicle is the embryonic root of the plant. Plumule is the embryonic shoot of the plant.

Growing Direction

Radicle grows downwards into the soil. Plumule grows upwards into the air.

Appearing From the Seed

Radicle is the first part of the seedling. Plumule grows after the radicle.

Developing Into

Radicle makes the root of the plant. Plumule makes the shoot of the plant.

Phototrophic

Radicle is negatively phototrophic. Plumule is positively phototrophic.

Hypertrophic

Radicle is positively hydrotrophic. Plumule is negatively hydrotrophic.

Colour

Radicle is whitish. Plumule is less whitish.

Geotrophic

Radicle is positively geotropic Plumule is negatively geotropic