Micro Organism (Virus, Bacteria, Algae, Fungi) MCQ: MCQ Test (25 questions)

Question 1 of 25

The water of Holy Ganges river is pure due to presence of -

ACyanophages
BHydrophytes
CBacteria
DBacteriophages

Question 2 of 25

Bacteria which cause food poisoning -

AClostridium tetani
BSalmonella typhosa
CBacillus anthriacis
DClostridium botulinum

Question 3 of 25

Yeast, used in making bread is a -

AFungus
BBacteria
CPlant
DSeed

Question 4 of 25

Red colour of red sea is due to-

AMoss
BAlgae
CFungi
DBacteria

Question 5 of 25

Yeast differ from bacteria in being………..

AMulticellular
BProkeryotic
CEukaryotic
DUnicellular

Question 6 of 25

Viruses are made up of -

AProtein & lipids
BNucleic acid & protein
CLipids & Carbohydrate
DCarbohydrate & Nucleic acid

Question 7 of 25

A bacterial cell divides once every minute and take one hour to fill a cup. How much time will take it to fill half the cup ?

A30 minutes
B60 minutes
C29 minutes
D59 minutes

Question 8 of 25

Viruses are-

AComplete saprophytes
BPartial Parasites
CPartial saprophytes
DTotal parasite

Question 9 of 25

Which one of the following fungi is commonly known as ' bread mould'?

ASynchytrium
BRhizopus
CAspergillus
DPenicillium

Question 10 of 25

The disease AIDS is caused by -

ABacteria
BFungi
CVirus
DProtozoan

Question 11 of 25

The smallest organism, capable of autonomous growth and reproduction , is -

Avirus
Bbacteria
Cmycoplasma
Dbacteriophage

Question 12 of 25

Foot and mouth disease in animal is caused by -

ABacteria
BVirus
CFungi
DAlgae

Question 13 of 25

Red rot of sugarcane is caused by -

AColletotrichum falcatum
BCercospora personata
CAlternaria alternata
DPhytophthora infestans

Question 14 of 25

Yeast is used in bakery in the preparation of bread because -

Alt make on bread hard
Blt make bread soft and spongy
Clt increase the food value of bread
Dlt keep the bread freah

Question 15 of 25

Litmus paper used in laboratory obtained from -

AGreen algae
BBlue-green algae
CLichen
DFungi

Question 16 of 25

Which of the Following symbiotic association forms a lichen ?

AAn algae and a fungus
BAn algae and a bryophyte
CA bacterium and a fungus
DA bacterium and a gymnosperm

Question 17 of 25

What is SARS -

AAn organisation
BA disease caused by virus
CA disease caused by bacteria
DCarbohydrate & Nucleic acid

Question 18 of 25

Mosaic disease of tobacco is caused due to -

AVirus
BBacteria
CFungi
DAlgae

Question 19 of 25

Which of the following is / are the possible commercial/ industrial applications of bacteria ? 1. Fermentation of sugars 2. Production of vaccines 3. Cleaning of oil spills Select the correct answer using the code given below :

A1 only
B1 and 3 only
C1 and 3 only
D1, 2 and 3

Question 20 of 25

Aflatoxins are produced by-

AFungi
BBacteria
CAlgae
DViruses

Question 21 of 25

Microorganisms are seen only with -

AOpen eye
BNaked eye
CMicroscope
DNone

Question 22 of 25

TMV is related to-

AVirus
BEvolution
CAlgae
DReproduction of

Question 23 of 25

Bacteria which convert atmospheric nitrogen into nitrogenous compound are called -

ADenitrifying bacteria
BNitrogen fixing bacteria
CNitrifying bacteria
DDecomposing bacteria

Question 24 of 25

Bacteria do not possess-

APlasma membrane
BCell wall
CMitochondria
DRibosomes

Question 25 of 25

The disease hydrophobia is caused due to -

ABacteria
BFungi
CVirus
DAlgae