Biomolecules do not have a turnover. True or false?

Which among the following statements is incorrect about classification of protein?

Which of these is a substituted purine?

Which of the following is the most abundant chemical in the living organisms?

Which of the following is not a nucleotide?

Identify the level of organization of the protein.

Which among the following is incorrect about amino acids?

Sucrose is also called as ____