Morphology Of Flowering Plants Root Stem And Leaf Question 150

Question: Read the assertion and reason carefully:

Assertion : In Bignonia, the terminal leaflets are modified into hooks. Reason : Leaflet of Bignonia is a climber.

Options:

A) If both the assertion and the reason are true and the reason is a correct explanation of the assertion

B) If both the assertion and reason are true but the reason is not a correct explanation of the assertion

C) If the assertion is true but the reason is false

D) If both the assertion and reason are false

Show Answer

Answer:

Correct Answer: A

Solution:

In Bignonia (Doxantha-unguis-cati) the terminal leaflets of the compound leaves become transformed into three stiff claw-like and curved hooks.

The hooks cling to the bark of the supporting tree very firmly and allow the plant to climb up.