Definition of Petals
Colourful modified leaves of the flower.
More About Petals
- They are the most prominent, bright and colourful part of the flower
- They constitute the whorl next to the calyx, the outermost whorl of the flower
- All the petals are collectively form a ‘corolla’ of the flower
- They are present next to the sepals
- The colour and shape of the petal varies differently according to the plant species
- They may be pink, red, yellow, purple, orange or a combination of any of the colours together
- The colour of the petals helps to attract the birds, bees and other insects that help for pollination
- The number of petals of a flower also varies from 3, 4, 5 or multiples of them
- The number of petals is important characteristics for the plant classification.
- If all the petals are similar in the size and shape, the flower is known as regular or actinomorphic flower.
- If the flowers are symmetrical in only one plane, then they are said to be irregular or zygomorphic.
- In some plants the sepals and the petals of the flowers cannot be distinguished as they have the same colour and shape. For example Tulips.
- Such flowers are known to have tepals, instead of sepals and petals.
Questions based on petals:
1) To which whorl of the flower do the petals include?
Solution: (b) The petals are the units of corolla, a whorl inner next to calyx
2) Which among the following is the most bright and colourful part of the flower?
Solution: (c) The petals are the most bright and colourful part of flower