Class 11 · Morphology of Flowering Plants

Flower Structure and Reproductive Organs — NEET Biology

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The flower is the reproductive unit in the angiosperms. It is meant for sexual reproduction. A typical flower has four different kinds of whorls arranged successively on the swollen end of the stalk or pedicel, called thalamus or receptacle. These are calyx, corolla, androecium and gynoecium. Calyx and corolla are accessory organs, while androecium and gynoecium are reproductive organs. In some flowers like lily, the calyx and corolla are not distinct and are termed as perianth. When a flower has both androecium and gynoecium, it is bisexual. A flower having either only stamens or only carpels is unisexual.

NCERT Biology · Class 11 · Chapter 5 · Paragraph 22
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Adjacent to a frequently-asked paragraph in the same chapter.

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The thalamus is also called the:

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