Which of the following bond is present in proteins?

Which of the following is true about lipids?

All the elements present in a sample of earth’s crust are also present in a sample of living tissue.

What are biomolecules?

Which of these elements is negligible in the human body?

Cotton fiber is made of cellulose. True or false?

What is the function of antibody?

Which of these structures do not contain cellulose as its major constituent?