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Plant Reproductive Biology

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Questions and Answers

What occurs before the actual flower is seen on a plant?

The androecium and gynoecium are formed
The pollen grains are produced
The decision to flower is made (correct)
The flower is visible

What is the function of the androecium in a flower?

It represents the male reproductive organ (correct)
It supports the gynoecium
It produces pollen grains
It represents the female reproductive organ

What is the proximal end of the filament attached to?

The anther
The pollen grain
The stamen
The petal or thalamus of the flower (correct)

What is a characteristic of the anther in a typical angiosperm?

It is dithecous (B) Signup and view all the answers

What would you observe if you were to collect stamens from different species of flowers?

A large variation in size and shape (C) Signup and view all the answers

What is the purpose of making neat diagrams of stamens?

To observe the shape and attachment of anthers (C) Signup and view all the answers

What is the shape of an anther in a transverse section?

Tetragonal (C) Signup and view all the answers

What is the function of the outer three wall layers of a microsporangium?

Protection and dehiscence of the anther (C) Signup and view all the answers

What is the ploidy of the cells of the microspore tetrad?

Haploid (A) Signup and view all the answers

What is the process of formation of microspores from a pollen mother cell through meiosis?

Microsporogenesis (B) Signup and view all the answers

What is the function of the tapetum in a microsporangium?

Nutrition to the developing pollen grains (A) Signup and view all the answers

What is the result of the dehiscence of an anther?

Release of pollen grains (A) Signup and view all the answers