The given compound:

1.	is a storage product in archaea
2.	is the source of energy in fungi
3.	is present in the cell walls of gram negative bacteria
4.	is a structural component of plasma membrane

Identify the given nitrogenous base:

Which of the following components is found in least amounts in an average cell?

Most abundant protein in the whole of the biosphere is:

Inulin is a:
1. Disaccharide containing two galactose
2. Disaccharide containing fructose and galactose
3. Polymer of fructose
4. Polysaccharide used in microbial culture

Adenine and guanine are:
1. Substituted purines
2. Substituted pyrimidines
3. Deoxyribonucleosides
4. Ribonucleotides

Quaternary structure is seen in proteins that:
1. act as biochemical catalysts
2. are embedded within the plasma membrane
3. are assembly of more than one subunits
4. do not have any structural role in the cell