Quaternary Structure of Protein

Q. Tertiary or quaternary structure is responsible for the functioning of a protein.

1. True
2. False

Q. Some proteins are an assembly of more than one polypeptide or subunits. The manner in which these individual folded polypeptides or subunits are arranged with respect to each other in the architecture of the protein is also known as

1. primary structure
2. secondary structure
3. tertiary structure
4. quaternary structure

Q. Match the following:

$\begin{array}{cc}\text{Column~I}& \text{Column~II}\\ \text{(i) Haemoglobin}& \text{(1) Fibrous protein}\\ \text{(}ii)Keratin& \text{(2) Non-essential}\\ \text{(iii)Glycine}& \text{(3)}\alpha \text{2}\beta \text{2}\\ \text{(iv)Valine}& \text{(4) Essential}\end{array}$

1. i-3, ii-1, iii-2, iv-4
2. i-2, ii-3, iii-4, iv-1
3. i-1, ii-2, iii-3, iv-4
4. i-3, ii-1, iii-4, iv-2