Morphology Of Flowering Plants Root Stem And Leaf Question 99

Question: Read the assertion and reason carefully:

Assertion : A simple leaf has undivided lamina. Reason : Leaves showing pinnate and palmate venation have various type of incisions.

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: B

Solution:

A leaf having a single or undivided lamina is called simple leaf.

The lamina can have different types of incisions, which may reach up to half (-fid), more than half (?partite) or near the base or midrib (-sect).

Depending upon the pinnate or palmate venation, the incisions are known as pinnatifid palmatifid, pinnatipartite, palmatipartite, pinnatisect and palmatisect.