Question

VI. Answer very briefly.
1. Write the name of any nitrogen fixing
bacteria.
2. Name the bacteria used in the production
of vinegar.
3. Write the names of any three protozoans.
4. who discovered penicillin?
5.which diseases can be prevent by a vaccination? ​

Answer 1

Answer:

1.Two kinds of nitrogen-fixing bacteria are recognized. The first kind, the free-living (nonsymbiotic) bacteria, includes the cyanobacteria (or blue-green algae) Anabaena and Nostoc and genera such as Azotobacter, Beijerinckia, and Clostridium...

2.It is a mixture of acetic acid (most often 5%) and water. The fermentation is performed usually by acetic acid bacteria, from the genus Acetobacter, from the alcohol in variety of sources (e.g., apple cider, wine, potatoes, fermented grain). Acetobacter bacteria are Gram negative aerobic rods...

3.There are three names of protozoa are :(1) Amoeba (2) paramecium (3) fungi...

4.Alexander Fleming (1881–1955): Discoverer of penicillin. Singapore Med J. 2015 Jul; 56(7): 366–367...

5.Vaccination protects against these diseases, which used to be prevalent in the United States.

#1. Polio. Polio is a crippling and potentially deadly infectious disease that is caused by poliovirus. ...

#2. Tetanus. ...

#3. The Flu (Influenza) ...

#4. Hepatitis B. ...

#5. Hepatitis A. ...

#6. Rubella. ...

#7. Hib. ...

#8. Measles.

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Answer 2

Answer:

1. Azotobacter

2. It is a mixture of acetic acid (most often 5%) and water. The fermentation is performed usually by acetic acid bacteria, from the genus Acetobacter, from the alcohol in variety of sources (e.g., apple cider, wine, potatoes, fermented grain). Acetobacter bacteria are Gram negative aerobic rods.

3. There are three names of protozoa are :(1) Amoeba (2) paramecium (3) fungi

4. Alexander Fleming

5. Tetanus, Hepatitis, Polio, Chicken Pox, Rubella etc.

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