Question

Subject: Biology
CHAPTER 2 - MICROORGANISMS : FRIEND AND FOE, 2.2 Where do Microorganisms live?
2.3 Microorganisms and Us (Up to Commercial use of Microorganisms)
Objective type Questions.
1. Which one of the following is not a single celled microorganism?
a) Bacteria
b) Chlamydomonas c) Protozoa
d) Aspergillus
2. Following are different prepared food items, which one of the food preparations need not
required microorganisms?
a) Bread
b) Wine
c) Curd
d) Vegetable biryani
3. Identify the bacterium which is present in curd.
a) Spirillum
b) Bacillus
c) Cocci
d) Vibrio
4. Which of the following is not a fermented product?
b) Alcohol
c) Bread
d) Rasagulla
5. Who discovered the process of fermentation?
6.
is used for commercial production of alcohol.
a) Bacillus
b) Yeast
c) Penicillium
d) Rhizobium
7. The chemical substance which is being produced from bacteria and fungi, i.e., used to kill the
pathogenic microorganisms is called as:
a) Vaccines
b) Antibodies
c) Antibodies
d) Drugs
8. Identify the scientist who discovered the penicillin.
a) Robert Koch b) Alexander Flemming c) Robert Hook
d) Louise Pasture
9. Give any two examples of antibiotics.
10. Antibiotics are not effective against.
a) Bacteria
b) Viruses
c) Protozoa
d) Fungi
a) Idli​

Answer 1

Answer:

2.they live everywhere

3.i Aspergillus

2. curd

3.Spirillum

4.Rasagulla

5.Louis Pasteur

6.Yeast

7.Antibiotic

8.Alexander Fleming

9.Streptomycin, amoxicillin

10.Idli

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