proteins

Which of the following factors is not responsible for the denaturation of proteins?

• Heat

• Charge

• organic solvent

• pH change

Which of the following is responsible for specifying the 3D shape of a protein?

• interaction with other polypeptide

• interaction with chaperones

• the peptide bond

• the amino acid sequence

________is not a classified form of conjugated proteins.

• complete proteins

• metalloproteins

• glycoproteins

• lipoproteins

How many amino acids make up a protein?

• 30

• 4

• 20

• 10

Which of the following cell organelles is involved in the process of protein synthesis?

• chloroplasts

• ribosomes

• mitochondria

• vesicles

what is true about primary structure of proteins

• they are three dimensional structure

• they are helical structure

• they are sequence of amino acids joined by peptide bond

• they are globular structure

The repeating unit of proteins are

• glucose units

• amino acids

• peptides

• fatty acids

the most common secondary structure is

• antiparallel beta pleated sheets

• alpha helix

• beta turns

• parallel beta pleated sheets

Disulphide bonds are formed between

• two cystine residues that are close to each other

• aspartate and glutamate residues that are close to each other

• two cysteine residues that are close to each other

• cysteine and cystine residues that are close to each other

silk fibroin consist of polypeptide chain that are arranged in the form of

• alpha helix

• beta helix

• beta pleated sheet

• none of the above