Microorganisms: Friend and Foe-Microorganisms (CBSE Class-8 Science): Questions 19 - 26 of 27

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Question number: 19

» Microorganisms: Friend and Foe » Microorganisms » Bacteria and Fungi

MCQ▾

Question

Nitrogen fixing bacteria are:

Choices

Choice (4) Response

a.

Rhizobium, Azotobacter

b.

Escherichia Coli, Peneumococcus

c.

Lactobacillus, Salmonella typhi

d.

Treponema, Vibrio

Question number: 20

» Microorganisms: Friend and Foe » Microorganisms » Bacteria and Fungi

MCQ▾

Question

Name the micro-organism helps in formation of bread.

Choices

Choice (4) Response

a.

Yeast

b.

Bacteria

c.

Protozoa

d.

Virus

Question number: 21

» Microorganisms: Friend and Foe » Microorganisms » Virus

MCQ▾

Question

Viruses found in the bacteria is called as

Choices

Choice (4) Response

a.

Plant Viruses

b.

Animal Viruses

c.

RNA/DNA Viruses

d.

Bacteriophage

Question number: 22

» Microorganisms: Friend and Foe » Microorganisms » Where Do Microorganisms Live?

MCQ▾

Question

Curd is formed by the process of:

Choices

Choice (4) Response

a.

Reduction

b.

Fertilization

c.

Fermentation

d.

Oxidation

Question number: 23

» Microorganisms: Friend and Foe » Microorganisms » Bacteria and Fungi

MCQ▾

Question

Friendly micro-organisms are:

Choices

Choice (4) Response

a.

Azotobater, Sea weeds

b.

Lactobacillus, Penicilliumnotatum

c.

Salmonella typhi, Bacillus anthracis

d.

Both a. and b. are correct

Question number: 24

» Microorganisms: Friend and Foe » Microorganisms » Protozoa and Algae

MCQ▾

Question

Algae having cup shaped chloroplast is:

Choices

Choice (4) Response

a.

Chlamydomonas

b.

Chlorella

c.

Spirogyra

d.

Both a. and b. are correct

Question number: 25

» Microorganisms: Friend and Foe » Microorganisms » Bacteria and Fungi

MCQ▾

Question

Symbiotic bacteria present in the human intestine is

Choices

Choice (4) Response

a.

Lactobacillus

b.

Pneumococcus

c.

Escherichia Coli

d.

Bacillus anthracis

Question number: 26

» Microorganisms: Friend and Foe » Microorganisms » Protozoa and Algae

MCQ▾

Question

The Protozoa which causes amoebic dysentery in human is

Choices

Choice (4) Response

a.

Entamoeba

b.

Plasmodium

c.

Trypanosoma

d.

Giardia

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