Q1. Most membrane proteins including Con-A receptor can be solubilised by treating cell membranes with a non-ionic detergent such as Triton X 100. You are given such a soluble preparation of erythrocyte proteins. Explain a single procedure that could be used to isolate the Con A Receptor from this preparation?

Q2. Two neighbours each dig a well. Though both wells penetrate to the same depth, one neighbour is successful and the other is not. Describe different circumstances that could describe what happened.

Q3. Propose two ways the photosynthesis process could be improved to fix more CO2 than normal and the plant productivity can be increased. Be specific about the procedure and enzymes involved.