Question

Find out incorrect statement from the following:

• A. Microorganisms that cause diseases are called as pathogens.
• B. Antibiotics are prepared from dead or weakened microbes.
• C. In the anaerobic treatment of sewage Methanobacterium is used.
• D. E.coli bacteria in human intestine help in synthesizing vitamin K and vitamin B complex.

Answer 1

The correct option is B Antibiotics are prepared from dead or weakened microbes.

Vaccines are prepared from dead or weakened microbes. Edward Jenner was the first person to discover small pox vaccine.

• He coined the term vaccination. When the vaccine is injected to the body of a patient, the body produces antibodies to fight against the germs.
• These antibodies remain inside the body and protects from future invasion of the germs. Therefore vaccination is otherwise called as immunization.

Example:
MMR vaccine for Measles, Mumps, Rubella. BCG (Bacille Calmette Guerin) vaccine for Tuberculosis.