Question

In most plants, why are only flowers coloured while rest of the plant is green?

• A. To attract insects
• B. For ornamental purposes
• C. To store food
• D. To manufacture food

Answer 1

The correct option is A

To attract insects

Flowers are the reproductive organs of a plant. They have colourful petals, especially in those plants which are primarily insect pollinated. They aim to attract insects for pollination.

$\bullet$ While the insects suck out nectar, stamens rub against insects' body.
$\bullet$ As this happens, pollens stick to insects' bodies and get transferred to the next flower they visit.

Rest of the plant is not involved in sexual reproduction and hence need not be colourful.