29 Questions
What is the shape of a typical microsporangium?
Near circular
How many microsporangia are present in an anther?
Four
What is the function of the microsporangia?
To produce pollen grains
What is the shape of an anther?
Bilobed
What is the function of the anther?
To produce pollen
How do the microsporangia extend in the anther?
Lengthwise
What is the result of meiosis in the MMC?
Formation of a single megaspore
What happens to the three other megaspores in the tetrad?
They degenerate
What is the term for pollination that occurs within the same flower?
Autogamy
What is the term for the transfer of pollen from one flower to another flower on the same plant?
Geitonogamy
What is the function of the female gametophyte in the life cycle of a plant?
To facilitate fertilization
What is the purpose of the diverse structures of inflorescences, flowers, and floral parts in flowering plants?
To attract pollinators and ensure formation of fruits and seeds.
Why do flowers exist according to the passage?
To aid in the sexual reproduction of plants.
What is the significance of flowers in human culture?
They are used as symbols for human feelings and emotions.
What is the focus of this chapter according to the passage?
The process of sexual reproduction in flowering plants.
What do the rich colours and scents of flowers attract?
Pollinators such as bees and butterflies.
What is the term used to describe flowering plants?
Angiosperms
What is the primary purpose of storing pollen grains?
For seed banks in crop breeding programmes
What is the term for the female reproductive part of a flower?
Pistil
Under what conditions can pollen grains maintain viability for months?
In some members of Rosaceae, Leguminoseae, and Solanaceae
What is the term for the process of fertilisation facilitated by pollen grains?
Fertilisation
What is the structure that represents the female reproductive part of a flower when it consists of multiple carpels?
Syncarpous
What is the purpose of storing pollen grains at -190°C?
To preserve its viability for extended periods
What is the result of meiosis in plants?
Production of 8-nucleate and 7-celled embryos
What is the function of the synergid cells?
They play an important role in guiding pollen tubes
What is pollination in flowering plants?
The transfer of pollen grains from anther to stigma
What is the composition of the egg apparatus?
One egg cell and two synergid cells
What is the function of the antipodals?
They are small cells located at the chalazal end
What is the characteristic of the gametes in flowering plants?
They are non-motile and require external agents for transfer
Explore the fascinating world of plant reproduction and discover the different structures and processes involved in the fertilisation of flowering plants. Learn about the importance of sexual reproduction in plants and how it affects their development. This quiz covers the basics of plant reproduction, from flowers to fertilisation.
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