Micro Organism (Virus, Bacteria, Algae, Fungi) MCQ: MCQ Test (50 questions)

Question 1 of 50

The discovery of viruses was made by -

Alwanowski
BBeijerinck
CMiller
DStanley

Question 2 of 50

Vegetative reproduction in yeast is by -

ABudding
BAcinate
CAplanospores
DAscospores

Question 3 of 50

EBOLA is a-

AVirus
BBacteria
CProtozoa
DFundi

Question 4 of 50

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

ASynchytrium
BRhizopus
CAspergillus
DPenicillium

Question 5 of 50

lodine is obtain from -

ALaminaria
BPolysiphonia
CPorphyra
DChlorella

Question 6 of 50

Which of the following is a free living bacteria that help in nitrogen fixation ?

AAzotobacter
BAnabaena
CAzolla
DNostoc

Question 7 of 50

Nitrogen fixing bacteria is useful in growing which crop -

AWheat
BPaddy
CLegume
DMaize

Question 8 of 50

Nitrogen fixing bacteria found in leguminous plant -

AAzotobacter
BNitrobacter
CRhizobium
DPseudomonas

Question 9 of 50

Consider the following - 1. Nucleic acid 2. Carbohydrate 3. Protein A virus is made up of which of the following ?

A1 and 2 only
B2 and 3 only
C1 and 3 only
D1, 2 and 3 only

Question 10 of 50

Virus in bats from Mahabaleshwar Cave ?

ANipah
BEbola
CCovid - 19
DZika

Question 11 of 50

Bacteria which commonly lives in the intestine of human -

AVibrio choleral
BBacillus anthracis
CCorynebacterium
DEscherichia coli

Question 12 of 50

Streptomycin is first obtained by-

ALeeuwenhoek
BWorkholder
CA.Fleming
DWaksman

Question 13 of 50

Genetic material of a virus is -

ADNA
BRNA
CEither DNA or RNA
DBoth DNA and RNA

Question 14 of 50

Amoeda acquires its food through the proceed of :

AEndocytosis
BPlasmolysis
CExocytosis and endocytosis
DExocytosis

Question 15 of 50

Symbiotic association of mycorrhiza is between-

AAlgae & Bryophytes
BFungi and root of higher plant
CAlgae & root of Gymnosperm
DAlgae & Fungi

Question 16 of 50

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 17 of 50

Fungi grown on the bark of tree-

ASaxcoles
BCorticoles
CTericoles
DCoprophilous

Question 18 of 50

Bacteria which is found in the intestine of human -

AEscherichia coli
BVibrio cholerae
CBacillus antherosis
DCorynebacterium diphtheriae

Question 19 of 50

Which of the following is also algae ?

ACyanobacteria
BGreen bacteria
CRhodospirillum
DPurple bacterio

Question 20 of 50

Consider the following statements with regard to chromosome of bacteria : 1. Bacteria always have a single chromosome. 2. Bacterial chromosome is circular . Which of the statements given above is / are correct ?

A1 only
B2 only
CBoth 1 and 2
DNeither 1 nor 2

Question 21 of 50

Bacteria which convert atmospheric nitrogen into nitrogenous compound are called -

ADenitrifying bacteria
BNitrogen fixing bacteria
CNitrifying bacteria
DDecomposing bacteria

Question 22 of 50

Which of the following statements is / are correct ? 1. Viruses lack enzymes necessary for the generation of energy . 2. Viruses can be cultured in any synthetic medium. 3. Viruses are transmitted from one organism to another by biological vectors only. Select the correct answer using the codes given below-

A1 only
B2 and 3 only
C1 and 3 only
D1, 2 and 3

Question 23 of 50

On industrial penicillin is obtain from -

APenicillium notatum
BPenicillium chrysogenum
CPenicillium griseofulvum
DPenicillium roqueforti

Question 24 of 50

Which of the following is used as biofertilizer in the production of crop paddy ?

ABlue green algae
BRhizobium
CFungi
DAzotobacter

Question 25 of 50

H1N1 virus is sometimes mentioned in the news with reference to which one of the following diseases ?

AAIDS
BBird Flu
CDengue
DSwine Flu

Question 26 of 50

Which of the following is one of the commercial product obtained from gelidium and Gracilaria and are used to grow microbes and preparation of ice-cream and jellies ?

AAgar
BChlorella
CSpirullina
DGymnosperm

Question 27 of 50

Fungi which grow on cow dung are called -

ASaxcoles
BCorticoles
CCoprophilous
DZoophilous

Question 28 of 50

Yeast differ from bacteria in being………..

AMulticellular
BProkeryotic
CEukaryotic
DUnicellular

Question 29 of 50

According to WHO, the official name of the virus responsible for Covid -19 disease is -

ASARS-CoV-2
BCovid-19
CnCovid -19
DCoronavirus

Question 30 of 50

Microbial fuel cells are considered a source of substainable energy. Why? 1. They use living organisms as catalysts to generate electricity from certain substracts. 2. They use a variety of inorganic materials as substrates. 3. They can be installed in waste water treatment plants to cleanse water and produce electricity. Which statements given above is/are correct ?

A1 only
B2 and 3 only
C1 and 3 only
D1, 2 and 3

Question 31 of 50

Microorganisms are seen only with -

AOpen eye
BNaked eye
CMicroscope
DNone

Question 32 of 50

Viruses that infect bacteria are called -

ABacteriophages
BBasophils
CBasal body
DBasidiospores

Question 33 of 50

Cell wall of fungi is made up of -

ALipids
BCellulose
CProtein
DChitin & Hemicellulose

Question 34 of 50

Micro-organism are found in…….

ASalted water
BSandy soil
CMarshy soil
DAll above

Question 35 of 50

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 36 of 50

Which of these algae is very rich in protein ?

AOscillatoria
BChlorella
CSpirogyra
DUlothrix

Question 37 of 50

Curd is sour due to presence of -

ACitric Acid
BLactic Acid
CAcetic Acid
DNone

Question 38 of 50

The virus which attack the bacterial cell are called -

ATobacco mosaic virus
BCyanophage
CBacteriophage
DMycophages

Question 39 of 50

Red rot of sugarcane is caused by -

AColletotrichum falcatum
BCercospora personata
CAlternaria alternata
DPhytophthora infestans

Question 40 of 50

Which one of following is commonly known as pond silk?

ASpirogyra
BRhizopus
CYeast
DUlothrix

Question 41 of 50

Red colour of red sea is due to-

AMoss
BAlgae
CFungi
DBacteria

Question 42 of 50

Penicillium is a-

AVirus
BAlgae
CFungi
DBacteria

Question 43 of 50

The food material in fungi is stored in the form of -

AStarch
BGlycogen
CGlucose
DSucrose

Question 44 of 50

Which one of the following disease caused by bacteria ?

ATuberculosis
BMumps
CSmall Pox
DRabies

Question 45 of 50

Lichen which grow on the bark of tree-

ASaxicoles
BCorticoles
CParmelia
DAscocoles

Question 46 of 50

Antibiotic which was discovered first-

ATeramycin
BNeomycin
CPenicillin
DStreptomycin

Question 47 of 50

The disease AIDS is caused by -

ABacteria
BFungi
CVirus
DProtozoan

Question 48 of 50

The most extensive use of molasses after fermentation is for producing -

AMethanol
BSugar
CEthanol
DSugarcane

Question 49 of 50

Growth of virus occur in………

ADead body
BLiving call
CWater
Dln sugar solution

Question 50 of 50

What is SARS -

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