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Punjab 12th Class Biology and Human Welfare Mcqs Test Online

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Question 1 of 15

Biology

1. A bioreactor is

1.Fermentation tank

2.Culture containing radioactive isotopes

3.Hybridoma

4.Culture for synthesis of new chemicals

Question 1 of 15

Question 2 of 15

2. The artificial active immunity is achieved by injecting small amount of antigen called:

1.Antibodies

2.Vaccine

3.Toxin

4.Serum

Question 2 of 15

Question 3 of 15

3. Biogas is

1.Propane rich fuel

2.Methane rich fuel

3.Both a and c

4.Ecofriendly and pollution free source

Question 3 of 15

Question 4 of 15

4. Who showed that Saccharomyces cerevisiae causes fermentation forming products such as beer and butter milk?

1.Schatz

2.Alexander Fleming

3.Selman Waksman

4.Louis Pasteur

Question 4 of 15

Question 5 of 15

5. Measles is an infectious viral disease that occurs most often in:

1.Late winter and autumn

2.Winter and rainy days

3.Late winter and summer

4.Late winter and spring

Question 5 of 15

Question 6 of 15

6. The best way to prevent a tetanus is:

1.Antibiotic

2.Vaccination

3.Medication

4.Cleanses

Question 6 of 15

Question 7 of 15

7. Which of the following is/are the method of crop improvement?

1.Selection

2.Polyploidy breeding

3.Hybridization

4.All of these

Question 7 of 15

Question 8 of 15

8. The discovery that led to the development of first antibiotic was made by

1.Pasteur

2.Fleming

3.Jenner

4.Pauling

Question 8 of 15

Question 9 of 15

9. Rennet is used in

1.Bread making

2.Antibiotics synthesis

3.Cheese making

4.Fermentation

Question 9 of 15

Question 10 of 15

10. High value of BOD (Biochemical Oxygen Demand) shows

1.Water is highly polluted

2.Water is less polluted

3.Water is normal

4.None of these

Question 10 of 15

Question 11 of 15

11. Tissue plasminogen activator is

1.A chemical that stimulates tissue differentiation

2.An Enzyme

3.Amino acid

4.A vitamin

Question 11 of 15

Question 12 of 15

12. Polio virus lives in the _________ of man.

1.Mouth and intestine

2.Mouth and throat

3.Stomach and intestine

4.Throat and intestine

Question 12 of 15

Question 13 of 15

13. Hybridization in plants is the technique of introducing desirable species into a hybrid by means of:

1.Pollination

2.Emasculation

3.Selection

4.Micro propagation

Question 13 of 15

Question 14 of 15

14. Spirulina is a:

1.Single cell protein

2.Bio pesticide

3.Edible fungus

4.Bio fertilizer

Question 14 of 15

Question 15 of 15

15. Which of the following is fermentation process?

1.Continuous process

2.None of these

3.Batch process

4.Both a and b

Question 15 of 15

Test By Subject	Punjab
Test By Topics	12th Class Biology

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