Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Which one of the following structures between two adjacent cells is an effective transport pathway?

  • Plasmodesmata

  • Plastoquinones

  • Endoplasmic reticulum

  • Endoplasmic reticulum

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2.

Single -celled eukaryotes are included in 

  • Protista

  • Fungi 

  • Archaea

  • Archaea


A.

Protista

Kingdom - Protista includes all unicellular eukaryotic organisms like flagellates, diatoms, dinoflagellate, slime mould, Sarcodina, etc.

Fungi represent a group of eukaryotic achlorophyllous, non - photosynthetic heterotrophic organisms of diverse forms, sizes, physiology and mode of reproduction. The members of Archaea (Archaebacteria) are prokaryotes and include the extreme halophiles, the thermoacidophiles and the methanogens.

Monera is the kingdome, that in older classifications contain all prokaryotes.

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3.

In unilocular ovary with a single ovule, the placentation is 

  • marginal

  • basal

  • free central 

  • free central 

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4.

An element playing important role in nitrogen fixation is 

  • Molybdenum

  • copper

  • manganese

  • manganese

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5.

One example of animals having a single opening to the outside that serves both as mouth as well as anus is 

  • Octopus

  • Asterias

  • Ascidia

  • Ascidia

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6.

The chief water conducting elements of xylem in gymnosperms are 

  • vessels

  • fibres

  • tansfusion tissue

  • tansfusion tissue

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7.

which one of the following is not a micronutrient?

  • Molybdenum

  • Magnesium

  • Zinc

  • Zinc

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8.

Membrane -bound organelles are absent in 

  • Saccharomyces

  • Streptococcus

  • Chlamydomonas

  • Chlamydomonas

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9.

The kind of epithelium which forms the inner walls of blood vessels is 

  • cuboidal epithelium

  • columnar epithelium

  • ciliated columnar epithelium

  • ciliated columnar epithelium

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10.

Which one of the following has its own DNA?

  • Mitochondria

  • Dictyosome

  • Lysosome

  • Lysosome

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