Biology : PU-CET (U.G) 2015 Panjab University Entrance Exam With Answers

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8.

Storage Zone Of Marchantia Is Devoid Of :

A: Oil Cell

B: Starch Grains

C: Nostoc

D: Reticulate Thickening

The answer is: C

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Explanation

The storage zone of Marchantia is devoid of Nostoc, which is a type of cyanobacteria. The storage zone of Marchantia is a specialized structure in the thallus (the body of the plant) where starch is stored. It is not a suitable environment for the growth of Nostoc, which typically grows in aquatic environments or in symbiosis with other plants or fungi. Therefore, the absence of Nostoc in the storage zone of Marchantia is not surprising.