Saturday, August 1, 2020

Revision Test, Ch 2,Class 12

1. What is the consequence if a protein is having altered structure?                    (1)

2. Expand PER and define it?                                                                                (2)

3. A protein from cell A and cell B is compared to find the whole protein pattern by a technique developed by O'Farrel. Name the technique. State its principle.                          (3)

4. Describe the important parts of mass spectrometer with diagram. why has this technique become so important in protein studies?                                                                                  (3)

5. Give reason for the following:                                                                           (3)

   (a) Kappa casein is involved in micelle stabilization of protein

   (b) Whey protein detoxifies xenobiotics

   (c) Curd is used as a probiotic

6. Which biomolecule has maximum functional diversity and why?                    (2)

7. Suggest two examples of genetic modifications for improving nutritional quality in cereals. (3)

8. Give one example and function of each of the following for protein based products:      (3)

   (a)  Industrial enzymes

   (b) Regulatory factors

   (c) Analytical application

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