Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

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41.

Algal zone is present in

  • normal root of Cycas

  • coralloid root of Cycas

  • normal root of Pinus

  • stem of Cycas


B.

coralloid root of Cycas

The cortex in coralloid roots of Cycas is divided into inner and outer regions by algal zone. The cells of this zone contain endophytic algal forms particularly Anabaena cycadeae and Nostoc punctiforme.


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42.

The magnitude of root pressure ranges from

  • 2-5 atm

  • 0.1-0.2 atm

  • 1-5 atm

  • 4-6 atm


43.

Which of the following element plays an important role in nitrogen fixation

  • Zinc

  • Molybdenum

  • Manganese

  • Copper


44.

The terminal electron acceptor during electron transport system is

  • oxygen

  • cyto a3

  • cyto c

  • plasto quinone


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45.

The Orobanche plant is

  • partial stem parasite

  • total root parasite

  • symbiont

  • total stem parasite


46.

Glycolysis occurs in

  • cytosol

  • mitochondria

  • Golgi complex

  • ribosomes


47.

'Reindeer moss' is common name for

  • Funaria hygrometrica

  • Marchantia sp

  • Cladonia rangifera

  • Polytrichum sp


48.

Periderm includes

  • cork cambium only

  • cork cambium and cork

  • cork and secondary cortex

  • cork cambium, cork and secondary cortex


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49.

Yeast belongs to which class

  • Basidiomycetes

  • Eumycetes

  • Ascomycetes

  • None of these


50.

In Spirogyra sometimes a ladder like structure  is present due to

  • vegetative reproduction

  • asexual reproduction

  • lateral conjugation

  • scalariform conjugation


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