Aqueous solution of SO₂ is

• acidic

• basic

• neutral

• amphoteric

Other than the nucleus which cellular organelle contains DNA?

• Ribosome

• Golgi complex

• Mitochondria

• Lysosome

Person taking rich diet of ascorbic acid will not suffer from

• Rickets

• Pellagra

• Scurvy

• Beri-beri

Which is the vestigial organ in a man?

• Pinna muscles

• Pinna

• Ileum

• Teeth

Which one of the following are acoelomate animals?

• Echinoderms

• Annelids

• Arthropods

• Platyhelminthes

Which of the following is not a protein?

• Heparin

• Keratin

• Fibroin

• Albumin

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

• Amphiplaytan

• Heterocoelous

• Procoelous

• Amphicoelous

In the absence of light, what will increase?

• Water uptake

• Elongation of internodes

• Uptake of mineral salts

• Extension of leaf lamina

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

• Nitrite reductase 

• Nitrate reductase

• Nitrogenous

• All of the above

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

• Algae

• Bryophyta

• Pteridophyta

• Gymnosperm