MCQ Questions for Class 8 Science Chapter 2 Microorganisms: Friend and Foe with Answers

Free PDF Download of CBSE Science Multiple Choice Questions for Class 8 with Answers Chapter 2 Microorganisms: Friend and Foe. Science MCQs for Class 8 Chapter Wise with Answers PDF Download was Prepared Based on Latest Exam Pattern. Students can solve NCERT Class 8 Science Microorganisms: Friend and Foe MCQs Pdf with Answers to know their preparation level.

Microorganisms: Friend and Foe Class 8 Science MCQs Pdf

1. Diseases like polio and chicken pox are caused by _______
a) Bacteria
b) Fungi
c) Virus
d) Worms

Answer

Answer: (c)


2. Examples of Multicellular Microorganism are
a) Algae, Bacteria
b) Bacteria and Fungi
c) Bacteria and Viruses
d) Algae and Fungi

Answer : (d)

3. Some medicines obtained from micro-organisms are applied to kill or stop the growth of disease-causing microorganisms. Such medicines are called ______.
a) Antibodies
b) Antibiotics
c) Antiseptics
d) All of the above

Answer

Answer: (b)


4. A common preservative used in jam and pickles is
a) Sodium benzoate
b) Nitric acid
c) Sodium Chloride
d) Copper Sulphate

Answer

Answer: (a)


5. Rhizobium found in root nodules of leguminous roots is an
a) Atmospheric Carbon fixer
b) Atmospheric Oxygen fixer
c) Atmospheric Nitrogen fixer
d) All of the above

Answer

Answer: (c)


6. Lactobacillus is commonly found in
a) Cake
b) Curd
c) Bread
d) All of the above

Answer

Answer: (b)


7. The process of conversion of sugar into alcohol by yeast is called
a) Fermentation
b) Pasteurisation
c) Alcoholism
d) All of the above

Answer

Answer: (a)


8. The pores in the bread is due to gas bubbles of
a) Oxygen
b) Nitrogen di oxide
c) Nitrogen
d) Carbon di oxide

Answer

Answer: (d)


9. Deliberately injecting weak microbes into a healthy body and producing antibodies to fight against strong microbes is called _______
a) Medication
b) Antibiotics
c) Vaccination
d) All of the above

Answer

Answer: (c)


10. The microbe for Malaria is carried by
a) Male Anopheles mosquito
b) Female Anopheles Mosquito
c) Male Aedes mosquito
d) Female Aedes mosquito

Answer

Answer: (b)


We hope the given Science MCQs for Class 8 with Answers Chapter 2 Microorganisms: Friend and Foe will help you. If you have any query regarding CBSE Class 8 Science Microorganisms: Friend and Foe MCQs Pdf, drop a comment below and we will get back to you at the earliest.

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