20+ Viva Voice Questions with Answers from the Description of Flower
Class: 11
Q.1. What is a flower?
Ans. A modified shoot meant for reproduction is called flower.
Q.2. Which are the essential whorls of flower?
Q.3 Define polypetalous and polysepalous condition of flower?
Ans. When petals are free :Polypetalous
When sepals are free :Polysepalous.
Q.4. What is placentation?
Ans. The arrangement of ovules in the chamber of the ovary is called placentation.
Q.5. What is monothecous and Dithecous anther?
Ans. When there is only one anther lobe in anther it is called monothecous, when there are two lobes in anther it is called dithecous.
Q.6. What are monoadelphous and diadelphous stamens?
Ans. When all the stamens are grouped in a single group it is called monoadelphous stamens.When stamens are grouped in two groups, they are called diadelphous stamens.
Q.7. What is flower’s importance to plant?
Ans. Flower helps in reproduction thus helps in continuation of species.
Q.8. To which family sweet pea belongs?
Ans. Sub family papilionaceae.
Q.9. To which family china rose belongs?
Ans. Malvaceae
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