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Reproduction in Plants

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Questions and Answers

What is the direct result of pollen falling on the stigma of a plant?

The formation of the embryo sac begins.

A haploid zygote can form.

A diploid zygote can form. (correct)

An egg cell is immediately formed.

Which of these agents directly contributes to self-fertilization?

Insects

Wind (correct)

Water

Birds

What is the difference between direct and indirect pollination?

Direct pollination is more efficient than indirect pollination.

Indirect pollination allows for increased diversity in offspring compared to direct pollination.

Direct pollination results in genetically similar offspring, while indirect pollination creates genetic diversity.

Direct pollination is more likely to result in self-fertilization, while indirect pollination is less likely. (correct)

How many haploid cells are formed during the meiosis of an ovule cell?

<p>Four (B)</p> Signup and view all the answers

What is the function of the polar nuclei in the embryo sac?

<p>To combine with a sperm nucleus to form the endosperm. (C)</p> Signup and view all the answers

Study Notes

Reproduction in Plants

Pistils are composed of stigmas, styles, and ovaries containing one or more ovules
Meiosis in an ovule produces four haploid cells
One haploid cell undergoes three further divisions to form the embryo sac, containing an egg cell (oosphere) and polar nuclei
Pollen must be transported to the stigma for fertilization
Direct pollination occurs when pollen from a flower lands on the stigma of the same flower
Indirect pollination occurs between different plants
Agents of direct pollination include wind, gravity, and self-pollination (in plants)

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Description

Explore the fascinating processes of reproduction in plants, including the roles of pistils, ovules, and pollination. Understand the differences between direct and indirect pollination and the agents involved in these processes. This quiz will deepen your knowledge of plant biology.