Which type of centrum is found in the vertebra of mammals? from

Subject

Science

Class

TET Class 12

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 Multiple Choice QuestionsMultiple Choice Questions

1.

Aqueous solution of SO2 is

  • acidic

  • basic

  • neutral

  • amphoteric


2.

Other than the nucleus which cellular organelle contains DNA?

  • Ribosome

  • Golgi complex

  • Mitochondria

  • Lysosome


3.

Person taking rich diet of ascorbic acid will not suffer from

  • Rickets

  • Pellagra

  • Scurvy

  • Beri-beri


4.

Which is the vestigial organ in a man?

  • Pinna muscles

  • Pinna

  • Ileum

  • Teeth


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5.

Which one of the following are acoelomate animals?

  • Echinoderms

  • Annelids

  • Arthropods

  • Platyhelminthes


6.

Which of the following is not a protein?

  • Heparin

  • Keratin

  • Fibroin

  • Albumin


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7.

Which type of centrum is found in the vertebra of mammals?

  • Amphiplaytan

  • Heterocoelous

  • Procoelous

  • Amphicoelous


A.

Amphiplaytan

Amphiplaytan has flat ends and this is in the vertebral centrum of mammals.


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8.

In the absence of light, what will increase?

  • Water uptake

  • Elongation of internodes

  • Uptake of mineral salts

  • Extension of leaf lamina


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9.

The enzyme responsible for reduction of molecular nitrogen to ammonia in leguminous plant is

  • Nitrite reductase 

  • Nitrate reductase

  • Nitrogenous

  • All of the above


10.

A plant forms spores, have vascular system, but does not form flower and seed can be placed under

  • Algae

  • Bryophyta

  • Pteridophyta

  • Gymnosperm


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