Microorganisms: Friend and Foe [CBSE (Central Board of Secondary Education) Class-8 Science]: Questions 1 - 8 of 46
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Question 1
Question MCQ▾
Micro-organisms which causing diseases in human beings are:
Choices
Choice (4) | Response | |
---|---|---|
a. | Algae | |
b. | Virus | |
c. | Bacteria, Protozoa | |
d. | Both b. and c. are correct |
Question 2
Question MCQ▾
Fungi helps in the fermentation is
Choices
Choice (4) | Response | |
---|---|---|
a. | Moulds | |
b. | Yeast | |
c. | Mushrooms | |
d. | Mildews |
Question 3
Question MCQ▾
Medicines obtained from the fungus is
Choices
Choice (4) | Response | |
---|---|---|
a. | Antigens | |
b. | Antibodies | |
c. | Antibiotics | |
d. | Antiseptics |
Question 4
Question MCQ▾
Micro-organism used in the laboratory for research is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Protozoa | |
b. | Fungi | |
c. | Bacteria | |
d. | Algae |
Question 5
Question MCQ▾
Micro-organisms which causes disease in plants is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Protozoa | |
b. | Bacteria | |
c. | Virus | |
d. | Both b. and c. are correct |
Question 6
Question MCQ▾
Algae that increases the soil fertility is
Choices
Choice (4) | Response | |
---|---|---|
a. | Kelps | |
b. | Real Algae | |
c. | Nostoc and Anabaena | |
d. | Diatoms |
Question 7
Question MCQ▾
Micro-organisms decompose organic waste such as
Choices
Choice (4) | Response | |
---|---|---|
a. | Cheese, pickles | |
b. | Vegetable peels, plants and animal waste | |
c. | Medicines | |
d. | Vaccines |
Question 8
Question MCQ▾
Bacteria which causes the food poisoning is:
Choices
Choice (4) | Response | |
---|---|---|
a. | Escherichia coli | |
b. | Salmonella and Staphylococcus | |
c. | Spirilla | |
d. | Peneumococcus |