Q. An amino acid is an amphoteric molecule.

View solution

Q. Which of these amino acids are not optically active?

View solution

Q. Which of these are used to measure optical activity?

View solution

Q. A solution of L-alanine (4.0g/50 ml of 6 N HCl) has a rotation of +1.61° in a 2dm polarimeter tube. Calculate the specific rotation of L-alanine in 6 N HCl.

View solution

Q. Name the amino acid, which exists in two non-superimposable mirror images of each other.

View solution

Q. Which of these are rare amino acid in a protein?

View solution

Q. In which amino acid Imidazole group, an aromatic ring found?

View solution

Q. What is the maximum wavelength that Tryptophan and tyrosine absorb?

View solution

Q. How is the secondary structure of a protein stabilized?

View solution

Q. How many amino acid residues are there in per turn of α-helix?

View solution

Q. What is the fundamental unit of collagen?

View solution

Q. Name the vitamins which cause scurvy.

View solution

Q. Arrange the following sequence of collagen synthesis in the correct order.

1) The entrance of polypeptide into the rough endoplasmic reticulum
2) Packaged in to transport vesicle
3) Hydroxylation of lysyl and prolyl residues
4) Formation of tropocollagen
5) Covalent cross-linking of tropocollagen
6) Collection of fibrils

View solution

Q. Name the protein which is responsible for extensibility and elasticity of connective tissues.

View solution

Q. Which of these type of curve shows the oxygen binding capacity of hemoglobin?

View solution

Q. Oxygen affinity for hemoglobin is affected by Ph and this phenomenon is known as Bohr’s effect.

View solution

Q. What is the function of myoglobin?

View solution

Q. What is the name of protein which is found in nail, hair, and horns?

View solution

Q. In which iron(Fe) state myoglobin binds to the oxygen?

View solution

Q. What is the shape of the oxygen dissociation curve of myoglobin?

View solution