Subject

Biology

Class

NEET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

21.

In frog, the vertebra with an anterior convex surface (i.e., double convexties) is

  • atlas

  • urostyle

  • 8th vertebra

  • 9th vertebra


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22.

The vital capacity of lungs is equal to

  • 4000 ml

  • 5000 ml

  • 6000 ml

  • 7000 ml


B.

5000 ml

The vital capacity is the maximum amount of air that can be expelled from lungs by forced exhalation after a forced inhalation. It is equal to the sum of tidal volume (TV), inspiratory reserve volume (IRV) and expiratory reserve volume (ERV).
VC= TV+ IRV+ ERV
    = 500 + 3000 + 1100
    =4600 ml


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23.

What is left when bath sponges dries up

  • Spicules

  • Spongin fibres

  • Tentacles

  • Holdfast


24.

RBC's are nucleated in

  • man

  • rat

  • frog

  • rabbit


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25.

A nucleoside is

  • base + sugar

  • base + phosphate

  • sugar+ phosphate

  • base + sugar+ phosphate


26.

Mannitol is reserve food in

  • Rhodophyceae

  • Chlorophyceae

  • Phaeophyceae

  • Xanthophyceae


27.

Plants growing on sand and gravel are called

  • eremophytes

  • psammophytes

  • psilophytes

  • oxylophytes


28.

The inflorescence in Ocimum is

  • cyathium

  • verticillaster

  • hypanthodium

  • raceme


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29.

The first phylogenetic system of plant classification was proposed by

  • Engler

  • Engler and Prantl

  • Eichler

  • Wetlstein


30.

Cellulose fibre is obtained from Gossypium.

  • stem surface

  • seed hair

  • leaf surface

  • root hair


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