Microorganisms: Friend and Foe-Microorganisms (CBSE Class-8 Science): Questions 10 - 18 of 27

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Question number: 10

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

MCQ▾

Question

Bacterial diseases in plants are:

Choices

Choice (4) Response
a.

Leaf spot of cotton

b.

Citrus canker, potato scab

c.

loose smut of wheat, potato blight

d. Both a. and b. are correct

Question number: 11

» Microorganisms: Friend and Foe » Microorganisms » Virus

MCQ▾

Question

Viral diseases are:

Choices

Choice (4) Response
a.

Typhoid fever, Anthrax, Pneumonia

b.

Sleeping sickness, Malaria, diarrhoea

c.

Measles, Mumps, Chickenpox, Rabies

d.

Loose smut of wheat, potato blight

Question number: 12

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

MCQ▾

Question

Vitamin which we get from fungi is

Choices

Choice (4) Response
a.

Vitamin A

b.

Vitamin D

c.

Vitamin B

d.

Vitamin C

Question number: 13

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

MCQ▾

Question

what is the size of smallest bacteria?

Choices

Choice (4) Response
a.

1.25 micrometre

b.

0.15 micrometre in diameter

c.

1.5 micrometre in length

d. None of the above

Question number: 14

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

MCQ▾

Question

Another name of Algae is

Choices

Choice (4) Response
a.

Thallus

b.

Brown algae

c.

Pond scum

d.

Green algae

Question number: 15

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

MCQ▾

Question

Fungi which emit light is

Choices

Choice (4) Response
a.

Penicilliumnotatum

b.

Downy mildew

c.

Armillariamellea

d.

Rizopus

Question number: 16

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

MCQ▾

Question

Largest fungi which is also used as food is

Choices

Choice (4) Response
a.

Mildews

b.

Mushrooms

c.

Yeast

d.

Mould

Question number: 17

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

MCQ▾

Question

The bacteria helps in the formation of curd is:

Choices

Choice (4) Response
a.

Azotobacter

b.

Acetobacteraceti

c.

Lactobacillus

d.

Salmonella typhi

Question number: 18

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

MCQ▾

Question

Name algae which is natural source of silica is

Choices

Choice (4) Response
a.

Diatoms

b.

Nostoc

c.

Chlorella

d.

Red algae

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