Practical VIVA in BIOCHEMISTRY

The chemical formed during benedicts test which gives brick red colour is

• Cupric hydroxide

• Cuprous hydroxide

• Cupric oxide

• Cuprous oxide

The purple colour produced during Biuret reaction is due to the reaction of copper with

• Glycosidic bonds

• Hydrogen bonds

• Aminolinkages

• Peptide bonds

Molisch reagent contains

• Alpha naphthol

• Resorcinol

• Orcinol

• Folins reagent

0.1 Normal NaOH is formed when ------- NaOH is dissolved in 1 litre of water

• 40 grams

• 40 milligrams

• 4 grams

• 0.4 grams

Approximate pH of stomach after a protein rich meal is

• 7.35

• 6.6

• 4.4

• 2.0

The amino acid which gives yellow colour with Ninhydrin

• Proline

• Tryptophan

• Tyrosine

• Arginine

Which among the following is NOT a polysaccharide

• Agar

• Heparin

• Chitin

• Dextrose

Saline citrate is used in the quantitative estimation of

• Amino acids

• Albumin

• DNA

• Citric Acid

Principle of Beers Lamberts Law is involved in the functioning of

• Calorimeter

• Colourimeter

• Flamephotometer

• Lambertometer

Name the Protein used for making standards in Lowry method of Quantitative analysis of Protein

• BSA

• IgG

• Fibrinogen

• Casein