Plant Reproduction and Germination

Ans - 1

The ovule is the female reproductive part of a flower that develops into the seed after fertilization. After pollination, the ovule matures into a seed containing the embryo, while the ovary develops into the fruit. Stems and leaves are vegetative parts not directly involved in seed formation.

Seedless fruits are formed due to the influence of hormones.

The embryo is the part of a seed that develops into a new plant. Foetus is unborn animal, fauna is animal life, and flora is plant life.

When a dicot germinates, it produces two seed leaves.

Pea is a non-albuminous seed.

To put or set something in the ground for growth is called planting it. This is the correct answer as seeds are planted.

Seed coat dormancy is observed when the seed coat is impermeable to water, and gases (oxygen). It requires action by weathering, microorganisms, passage through an animal's digestive track, or fire to soften the seed coat.

Dormancy that is caused by an impermeable seed coat is known as physical dormancy. Physical dormancy is the result of impermeable layer(s) that develops during maturation and drying of the seed or fruit. This impermeable layer prevents the seed from taking up water or gases. As a result, the seed is prevented from germinating until dormancy is broken.

Perisperm is the residual, persistent nucellus found inside some seeds.

In paddy (Oryza sativa, rice), the grain (caryopsis) remains enclosed by persistent bracts (lemma and palea) collectively called the chaff. This is characteristic of the grass family (Poaceae).

A sprout is a very young plant (newly germinated) or the new growth on a plant (a shoot).

Fusion of male and female gametes in plants, called as fertilization. It does not require sunlight.

Cycas is a gymnosperm. This term is derived from two Greek words: Gymno – meaning naked and Sperma – meaning seed. The plants of this group bear naked seeds and are usually perennial, evergreen and woody.

Ferns are seedless vascular plants that reproduce via spores. Angiosperms and gymnosperms both produce seeds, while dicotyledons are a subclass of angiosperms characterized by two cotyledons.