List of top Biochemistry Questions on Proteins

Identify the proteins with correct function:

A. Cytochrome C - Electron Transport chain

B. Hemoglobin - Storage of \(\text{O}_{2}\) in muscle

C. Catalase - Degradation of hydrogen peroxides

D. Myoglobin - Transport of \(\text{O}_{2}\) in blood

Choose the correct answer from the options given below:

Given below are two statements: one is labelled as Assertion (A) and the other is labelled as Reason (R).

Assertion (A): In a zinc finger about 30 amino acids form an elongated loop held together at the base by a single \(\text{Zn}^{2+}\) ion which is coordinated to form residues (with Cys and/or His).

Reason (R): The Zn does not itself interact with DNA, rather the coordination of Zn with amino acid residues stabilizes the small structural motif.

In the light of the above statements, choose the most appropriate answer from the options given below:

Which one of the test, is not given by proteins?

H₁ receptor protein in humans is made up of: