Biology : Sexual Reproduction In Flowering Plants

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What you'll learn

State the structure & function of the floral parts including: Sepal, petal, stamen, carpel.
State that the Pollen grain produces male gamete and define the terms: pollination, self- pollination with Outline methods of pollination including: cross-polli
Explain various techniques of outbreeding devices.
State that the Embryo sac produces an egg cell & polar nuclei.
Define the term: fertilisation.
Outline seed structure & function of …

Rating 0 out of 5 (0 ratings in Udemy)

What you'll learn

State the structure & function of the floral parts including: Sepal, petal, stamen, carpel.
State that the Pollen grain produces male gamete and define the terms: pollination, self- pollination with Outline methods of pollination including: cross-polli
Explain various techniques of outbreeding devices.
State that the Embryo sac produces an egg cell & polar nuclei.
Define the term: fertilisation.
Outline seed structure & function of following: testa, plumule, radicle, embryo, cotyledon
Explain development of embryo and seed. & food supply (endosperm or seed leaves)
Classify plants as monocotyledon or dicotyledon & distinguish between them.
Make reference to non-endospermic seed.
Outline fruit formation. Outline seedless fruit production
Define the term dormancy. State advantages of dormancy.
Explain importance of apospory for hybrid seed production.
Draw well labelled diagrams of of mega sporangium, microsporangium, various stages of mega and microsporogenesis, development of embryo and structure of seed.

Description

The myriads of flowers that we enjoy gazing at, the scents and the perfumes that we swoon over, the rich colours that

attract us, are all there as an aid to sexual reproduction.

Flowers do not exist only for us to be used for our own selfishness. All flowering plants show sexual reproduction.

A look at the diversity of structures of the inflorescences, flowers and floral parts, shows an amazing range of

adaptations to ensure formation of the end products of sexual reproduction, the fruits and seeds. In this chapter, let us understand the morphology, structure and the processes of sexual reproduction in flowering plants (angiosperms).

Flowers are the seat of sexual reproduction in angiosperms. In the flower, androecium consisting of stamens represents the male reproductive

organs and gynoecium consisting of pistils represents the female reproductive organs.

A typical anther is bilobed, dithecous and tetrasporangiate. Pollen grains develop inside the microsporangia. Four wall layers, the epidermis, endothecium, middle layers and the tapetum surround the microsporangium. Cells of the sporogenous tissue lying in the centre of the microsporangium, undergo meiosis (microsporogenesis) to form tetrads of microspores. Individual microspores mature into pollen grains.

Course Content

Introduction
Structure of Flower
Male Sex Organ in Flower
Microsprogenesis
Pollen Grains
Female sex organ - Pistil
Pollination
Sexual reproduction in flowering plants
Agents of pollination
Megasporogenesis
Embryo sac formation
Double Fertilisation
Before and After Fertilisation
Embryogeny
Formation of Seed and Fruit
Some important terms
Pollen-Pistil Interaction
Endosperm Formation
More About Pollen Grains
Outbreeding Devices
Artificial Hybridisation
Embryogeny - Monocot vs Dicot

These are fantastic concepts that will lay a strong theoretical foundation for you and help you with competitive exams like NEET , CET, Foundation

Duration 4 Hours 58 Minutes

Paid

Self paced

Intermediate Level

English (US)

Rating 0 out of 5 (0 ratings in Udemy)

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