What is a flower? Describe the parts of a typical angiosperm flower.
• Ans: Flowering plants (angiosperms) have flowers as their reproductive unit.
Angiosperms reproduce sexually through flowers.
• Flowers are usually modified stems with condensed axes. There are four concentric
lobes on a flower.
• Calyxes, corollas, androecium, and gynoecium make up the four whorls of the flower,
from outside to inside. • On flowers, the androecium represents the male reproductive whorl and the gynoecium
represents the female reproductive whorl.
• An example of a bisexual flower is one with both androecium and gynoecium, while a
unisexual flower only has gynoecium.
• There is usually a distinct corolla and calyx, but they can be fused (called perianth).
All four parts of a flower are known as a complete flower.
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• Ans: Flowering plants (angiosperms) have flowers as their reproductive unit.
Angiosperms reproduce sexually through flowers.
• Flowers are usually modified stems with condensed axes. There are four concentric
lobes on a flower.
• Calyxes, corollas, androecium, and gynoecium make up the four whorls of the flower,
from outside to inside. • On flowers, the androecium represents the male reproductive whorl and the gynoecium
represents the female reproductive whorl.
• An example of a bisexual flower is one with both androecium and gynoecium, while a
unisexual flower only has gynoecium.
• There is usually a distinct corolla and calyx, but they can be fused (called perianth).
All four parts of a flower are known as a complete flower.
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