Chapter 9: Microbes in Human Welfare - Online Test

Q1. When domestic sewage mixes with river water
Answer : Option C
Explaination / Solution:
No Explaination.


Q2. Select the correct statement from the following.
Answer : Option D
Explaination / Solution:
No Explaination.


Q3.

Read the following four statements (A to D):

A) Colostrums is recommended for the new born because it is rich in antigen.

B) Chikungunya is caused by a gram negative bacterium.

C) Tissue culture has proved useful in obtaining virus-free plants.

D) Beer is manufactured by distillation of fermented grape juice

How many of the above statements are wrong?
Answer : Option A
Explaination / Solution:
No Explaination.


Q4. Which of the following are likely to be present in deep sea water?
Answer : Option A
Explaination / Solution:
No Explaination.


Q5. During sewage treatment, biogas are produced which includes
Answer : Option A
Explaination / Solution:
No Explaination.


Q6. What gases are produced in anaerobic sludge digesters?
Answer : Option B
Explaination / Solution:
No Explaination.


Q7.

Match the following list of microbes and their importance:

a)Saccharomyces cerevisiae (i)Production of immunosuppressive agents

b)Monasus purpureus (ii)Ripening of Swiss cheese

c)Trichoderma polysporum (iii)Commercial production of ethanol

d)Propionibacterium shermanii (iv)Production of blood- cholesterol lowering agents.
Answer : Option D
Explaination / Solution:
No Explaination.


Q8. Which of the following is wrongly matched in the given below?
Answer : Option D
Explaination / Solution:
No Explaination.


Q9.  Match Column – I with Column – II and select the correct options using the codes given 9.below:


Answer : Option D
Explaination / Solution:
No Explaination.