(a) State two functions of protein in the body
(b) List two ways by which patching can be done
(c) (i) Explain a design brief
(ii) List three methods of carrying out design investigations.
(iii) State two factors to consider when selecting the best solution from the generated possible solutions in designing.
(d) (i) What is the colour spectrum?
(ii) List the three primary colours
(iii) Explain secondary colours