MCQ | BIOTECHNOLOGY AND ITS APPLICATIONS

1. Maximum utilization of the techniques of biotechnology has been made in the field of

             (a)   Agriculture                           (b)   Medicines

             (c)   Industries                             (d)   Biogas production

2. By the use of biotechnology, in which bacteria production of B₂ vitamins has been increased to about 20,000 times

             (a)   Ashbya gossypi

             (b)   E. coli

             (c)   Pseudomonas denitrificans

             (d)   Propionibacterium shermanii

3. Somatostatin is a

             (a)   Growth hormone                (b)   An enzyme

             (c)   A steroid                                (d)   A carbohydrate

4. The enzyme TPA is used to [AIIMS 1986]

             (a)   Maintain turgor pressure (b)   Strengthen tissues

             (c)   Increase plasma                  (d)   Dissolve blood clots

5. The application of microbial metabolism to transform simple raw materials into valuable products is [MP PMT 1993]

             (a)   Biocatalysis                          (b)   Genetic engineering

             (c)   Tissue culture                      (d)   Fermentation

6. Which of the following enzymes are used for manufacturing detergents

             (a)   Proteases                              (b)   Glucoamylases

             (c)   Amylases                               (d)   Lactases

7. For rapid production of alcohol, immobilised yeast cells are kept in

             (a)   Silica gel                                (b)   Wire netting

             (c)   Porcelain columns             (d)   Calcium alginate beads

8. Tissue plasminogen activator is

             (a)   An enzyme

             (b)   A vitamin

             (c)   An electric device

             (d)   A chemical that stimulates tissue differentiation

3. (a) It is a growth hormone and this hormone is secreted from front lobe of pitutary gland. The individual suffers dwarfness due to its deficiency.
4. (d) TPA (Tissue plasminogen activator) enzyme is specifically used in heart patients to dissolve blood clots.

6. (a) Proteases or proteolytic enzymes obtained from Aspergillus Oryzae and Bacillus subtilis and are used in detergents to remove some proteinaceous stains on clothes

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