Which of the following proteins are fibrous?

AAlbumin
BMyosin
CInsulin
DKeratin

Answer: B, D

Keratin (hair, nails) and myosin (muscle) are long thread-like fibrous proteins, insoluble in water. Albumin and insulin are globular proteins, soluble in water.

Practice Biomolecules More on Proteins: peptide bond, structure levels, denaturation

Previous questionNext question

More questions on Proteins: peptide bond, structure levels, denaturation

In the tripeptide Gly-Ala-Ser (N-terminal to C-terminal), which residue uses both its amino group and its carboxyl group in forming peptide ... JEE Main level
Which statement about the alpha-helix is correct? JEE Main level
Which statements about the peptide bond in proteins are correct? JEE Main level
Using only glycine and alanine, with repetition allowed, the number of different linear tripeptides that contain at least one residue of eac... JEE Advanced level
A polypeptide has molar mass 12000 g/mol and contains 10 cysteine residues, all of which are oxidised pairwise to disulfide bridges (no othe... JEE Advanced level
Molar masses of the free amino acids: glycine 75, alanine 89, serine 105 g/mol (water 18 g/mol). The molar mass of the tripeptide Gly-Ala-Se... JEE Advanced level