EASY
8th CBSE
IMPORTANT
Earn 100

The malaria disease is caused by a:
(a)Virus
(b)Protozoan
(c)Bacterium
(d)Fungus

50% studentsanswered this correctly

Important Questions on Micro-Organisms: Friend and Foe
EASY
8th CBSE
IMPORTANT
The parasite called Plasmodium causes a disease known as:

EASY
8th CBSE
IMPORTANT
After consuming a dish of mutton, a person complained of nausea, vomiting, diarrhoea and pain in the abdomen. What type of disease is he suffering from? (Food poisoning/ tuberculosis)

MEDIUM
8th CBSE
IMPORTANT
After consuming a dish of mutton, a person complained of nausea, vomiting, diarrhoea, and pain in the
abdomen. What causes this disease?

EASY
8th CBSE
IMPORTANT
Match the micro-organisms in column A with their action in column B:
A | B |
(i) Bacteria | (a) Fixing nitrogen |
(ii) Rhizobium | (b) Setting of curd |
(iii) Lactobacillus | (c) Baking of bread |
(iv) Yeast | (d) Causing malaria |
(v) A protozoan | (e) Causing cholera |
(vi) A virus | (f) Causing AIDS |
(vii) Penicillium | (g) Producing antibiotics |

EASY
8th CBSE
IMPORTANT
To which category of microorganisms do the following belong?
Amoeba, Lactobacillus, Chlamydomonas, Penicillium, Yeast, HIV

EASY
8th CBSE
IMPORTANT
Name the causative microorganisms of the following plant diseases:
Rust of wheat.

EASY
8th CBSE
IMPORTANT
Name the causative microorganism of the plant disease Citrus canker: (Bacteria/Virus)

EASY
8th CBSE
IMPORTANT
Name the causative microorganisms of the following plant disease:
Yellow vein mosaic of bhindi (Okra).
