Multiple choice

Which of the following are the essential parts of a flower?

  1. Calyx and corolla

  2. Calyx and androecium

  3. Corolla and gynoecium

  4. Androecium and gynoecium
Reveal answer Fill a bubble to check yourself
D Correct answer
Explanation

The essential parts of a flower are the androecium (male reproductive whorl - stamens) and gynoecium (female reproductive whorl - carpels). These are called 'essential' because they are directly involved in sexual reproduction - stamens produce and release pollen, while carpels contain ovules that develop into seeds after fertilization. The calyx (sepals) and corolla (petals) are 'accessory' or 'non-essential' parts that protect the reproductive organs and attract pollinators, but flowers can still complete sexual reproduction without them (as in grasses and some wind-pollinated species).

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