Biology B (Advancing Biology) H022: Proteins and enzymes Topical Past Paper Questions

Amino acids have the same general structure with four different chemical groups attached to a central carbon atom. The structure of the amino acid valine is shown in the diagram. (a) One of the chemical groups in valine has been labelled on the diagram Circle and label two other…

After donation, blood is processed into different products. The table shows a description of some blood products and possible uses. Which of the rows, A to D, is correct?

Glucose is produced by plants during photosynthesis. It can be combined with fructose to form the disaccharide sucrose, which can then be transported to other tissues inside the plant. Fig. 5 is a diagram of glucose and fructose. Glucose Fructose Fig. 5 (a) Using the information…