Olympiad Test: Microorganisms - 2


15 Questions MCQ Test Science Olympiad Class 8 | Olympiad Test: Microorganisms - 2


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Attempt Olympiad Test: Microorganisms - 2 | 15 questions in 30 minutes | Mock test for Class 8 preparation | Free important questions MCQ to study Science Olympiad Class 8 for Class 8 Exam | Download free PDF with solutions
QUESTION: 1

The bacterium found in curd is called

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QUESTION: 2

Microorganisms spread though

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QUESTION: 3

What in the shape of Lactobacillus, the bacterium used for making cheese and curd?

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QUESTION: 4

A lukewarm sugar solution of yeast when seen under a microscope after a day shows that

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QUESTION: 5

A chain of yeast cells in a warm sugar solution means

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QUESTION: 6

Microorganisms are classified into how many classes?

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QUESTION: 7

Which of the following increase the fertility of soil?    

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QUESTION: 8

Protozoan’s are unicellular—— organisms.
(A) Lactobacillus bacteria
(B) Rizobium  bacteria
(C) Spirogyra algae
(D) Blue – green algae 

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QUESTION: 9

The softening of dough mixed with yeast is called

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QUESTION: 10

Orange mould is a fungus found growing on decaying

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QUESTION: 11

Vinegar is made from which of these bacteria?

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QUESTION: 12

Which of these disease is caused by Plasmodium?

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QUESTION: 13

Dead or weakened germs that help protect the body against future attack by the germs are called

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QUESTION: 14

Amoeba, guardian paramecium are examples of

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QUESTION: 15

Microorganisms are useful in

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