Questions and Answers
What is the male reproductive whorl of a flower called?
Androecium
What is the individual member of the androecium called?
Stamen
How many anther lobes does a dithecous anther typically have?
Two
What is the term for the differentiation that arises when some hypodermal cells get transformed into archesporial cells?
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What does the sporogenous cell form in the anther?
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What happens to the upper three megaspores during megasporogenesis?
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What is the fate of the functional megaspore in megasporogenesis?
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What is the composition of the egg apparatus in the female gametophyte?
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What is the total number of nuclei formed during the development of the female gametophyte?
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Where does the functional megaspore remain during megasporogenesis?
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Study Notes
Male Reproductive Whorl
- The male reproductive whorl of a flower is called the androecium.
Androecium
- An individual member of the androecium is called a stamen.
Anther Structure
- A dithecous anther typically has two anther lobes.
Sporogenous Cell Formation
- Some hypodermal cells get transformed into archesporial cells, which is a differentiation called sporogenesis.
- The sporogenous cell forms microspores in the anther.
Megasporogenesis
- The upper three megaspores degenerate during megasporogenesis.
- The functional megaspore develops into the female gametophyte.
- The functional megaspore remains in the ovule during megasporogenesis.
Female Gametophyte
- The composition of the egg apparatus in the female gametophyte includes one egg cell and two synergids.
- A total of eight nuclei are formed during the development of the female gametophyte.
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