problem1. Apart from food, what other substances do cells require to take in?
problem2. Provide three exs of cell structures which contain structural proteins.
problem3. What is the other sort of protein in a cell?
problem4. prepare down the name of chemical elements present in a protein.
problem5. What name is given to sub-units which make up all proteins?
problem6. What type of substance is a lipid?
problem7. In a cell, where are lipids originated?
problem8. What are the two types of chemical compound which combine to form the lipid?
problem9. What elements are present in the lipid?