Plant Kingdom Question 257

Question: Assertion : Riccia is many cells thick. Reason : Riccia has both assimilatory region and storage region.

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:

The externally simple thallus of Riccia shows a more elaborate internal structure.

It is many cells deeps.

Thallus of Riccia has two distinct regions.

(i) An upper or dorsal assimilatory or photosynthetic region.

(ii) A lower or ventral storage region.