Test: Microorganisms Friend And Foe - 4


20 Questions MCQ Test Science Class 8 | Test: Microorganisms Friend And Foe - 4


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This mock test of Test: Microorganisms Friend And Foe - 4 for Class 8 helps you for every Class 8 entrance exam. This contains 20 Multiple Choice Questions for Class 8 Test: Microorganisms Friend And Foe - 4 (mcq) to study with solutions a complete question bank. The solved questions answers in this Test: Microorganisms Friend And Foe - 4 quiz give you a good mix of easy questions and tough questions. Class 8 students definitely take this Test: Microorganisms Friend And Foe - 4 exercise for a better result in the exam. You can find other Test: Microorganisms Friend And Foe - 4 extra questions, long questions & short questions for Class 8 on EduRev as well by searching above.
QUESTION: 1

Penicillium is a

Solution:

Penicillium ascomycetous fungi are of major importance in the natural environment as well as food and drug production. Some members of the genus produce penicillin, a molecule that is used as an antibiotic, which kills or stops the growth of certain kinds of bacteria.

QUESTION: 2

Malaria is caused by

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QUESTION: 3

Mushrooms belong to

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QUESTION: 4

Rhizobium bacteria

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QUESTION: 5

Cocci are ____ shaped bacteria.

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QUESTION: 6

Amoeba belongs to

Solution: Amoeba, also spelled as Ameba, is a genus that belongs to protozoa, which are unicellular eukaryotes (organisms with membrane-bound cell organelles). The name Amoeba is derived from the Greek word amoibe, which means change. There are many species, of which the most extensively studied is Amoeba proteus. Majority of the species are very minute and are not visible to the naked eye. In spite of its small size, the genomic content is several times more than the human genome. The species A. dubia consists of about 370 billion base pairs; whereas, human genome has about 3 billion base pairs.
QUESTION: 7

Microorganisms are

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QUESTION: 8

Spirogyra is

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QUESTION: 9

Scientist who discovered the fermentation

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QUESTION: 10

Amount of nitrogen in atmosphere is

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QUESTION: 11

 Microorganisms can be seen with naked eyes.

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QUESTION: 12

Viruses can only multiply in a living cell.

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QUESTION: 13

Louis Pasteur was the first scientist who discovered the Penicillin.

Solution:

Sir  Alexander Fleming, is credited with the discovery of Penicillin in 1928.
So, the given statement is false.

QUESTION: 14

Rhizobium is a bacteria which can fix the atmospheric nitrogen.

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QUESTION: 15

Mushroom is a fungi.

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QUESTION: 16

Disease‑causing microorganisms are called pathogens.

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QUESTION: 17

Anthrax is the common disease in human and other animals.

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QUESTION: 18

Oxygen and nitrogen make the 78% of air.

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QUESTION: 19

Edward Jenner discovered the process of fermentation.

Solution:

Louis Pasteur discovered the process of fermentation within the yeast cells in 1856.
So, the given statement is incorrect.
As, Edward Jenner developed smallpox vaccine in 1796.

QUESTION: 20

Foot and mouth disease is the bacterial disease in animals.

Solution:

Foot and mouth disease (FMD) is a severe, highly contagious viral disease of livestock that has a significant economic impact. The disease affects cattle, swine, sheep, goats and others.
So, as it is a viral disease ; the given statement is incorrect.

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