Morphology Of Flowering Plants Root Stem And Leaf Question 502

Question: Read the assertion and reason carefully:

Assertion : Degeneration of cells causes abscission. Reason : Parenchymatous layer forms abscission layer.

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:

Abscission involves formation of a special parenchymatous layer called abscission or separation layer at the base of organ and a layer of suberised thick-walled ‘cork’ cells called protective layer over the mother axis.

Degeneration of cells of abscission or separation layer causes abscission.