[3 marks Question Answer]

Question 13 Marks

Match the parts in Column A with the flowers or parts of the flower in Column B.

Answer

Question 23 Marks

Explain the terms Monadelphous, Diadelphous and Polyadelphous. In each case name a flower possessing such an androecium.

Answer

Condition of androecium	Explanation	Example of flower
Monadelphous	Filaments of the anthers in a flower are fused into one group	Hibiscus
Diadelphous	Filaments of the anthers in a flower are fused into two groups	Pea
Polyadelphous	Filaments of the anthers in a flower are fused into more than two groups	Bombax

Question 33 Marks

Distinguish between the following pairs:
Petals and petaloid sepals

Answer

Petals	Petaloid sepals
Petals are used to attract insects for pollination	Petaloid sepals are used to give support to flower and are present at its base
Petals are called corolla	Petaloid sepals are called calyx
Differentiated Petals are non-essential parts of a flower that help in the protection of reproductive parts.	Perianth is the case when petals and sepals appear to be undifferentiated in a flower. When the perianth is non-green, it is called a petaloid.

Question 43 Marks

Name the different types of androecium found in flowers.

Answer

Types of the androecium in flowers:

Polyandrous: When the stamens of a flower are free, the condition is called polyandrous.
Monadelphous: When the filaments of anthers in a flower are fused into one group, the condition is called monadelphous.
Diadelphous: When the filaments of anthers in a flower are fused into two groups, the condition is called diadelphous.
Polyadelphous: When the filaments of anthers in a flower are fused into more than two groups, the condition is called polyadelphous.

BIOLOGY [3 marks Question Answer]