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

Question 1 of 50

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 2 of 50

Which one of the following type of micro organism is most widely used in industires ?

ABacteria
BBacteria and fungi
CBacteria and algae
DBacteria, microalgae and fungi

Question 3 of 50

Fungi used in baking industry -

ASaccharomyces cerevisiae
BSchizosaccharomyces
CSaccharomyces ellipsoideus
DRhizopus stolonifer

Question 4 of 50

Which communicable disease is caused by bacteria ?

ASmall pox
BMumps
CLeprosy
DAsthma

Question 5 of 50

Which of the following protozoan disease is transmitted bybite of Tse-Tse fly ?

ASleeping sickness
BDelhi boli
CKala azar
DChaga' s disease

Question 6 of 50

What is SARS -

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

Question 7 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 8 of 50

Smallest form of bacteria is called -

AVibrio
BCocci
CBacilli
DSpirilla

Question 9 of 50

Which of the following is absent in bacteria ?

ACell wall
BPlasma membrane
CMitochondria
DRibosome

Question 10 of 50

Yeast is an important source of -

AVitamin C
BVitamin-B
CVitamin -A
DVitamin -D

Question 11 of 50

HIV is related to-

ACancer
BPlague
CHepetities
DAIDS

Question 12 of 50

Lichens are indicator of -

AAir pollution
BWater pollution
CSoil pollution
DRadiation pollution

Question 13 of 50

Which of the following unicellular algae are used as source of oxygen in space research ?

AUlothrix
BSpirogyra
CChlorella
DOdogonium

Question 14 of 50

Which of the following is used as bio-fertilizer?

AColastridum
BUrea
CAzola
DBaggase

Question 15 of 50

Yeast differ from bacteria in being………..

AMulticellular
BProkeryotic
CEukaryotic
DUnicellular

Question 16 of 50

TMV is related to-

AVirus
BEvolution
CAlgae
DReproduction of

Question 17 of 50

Streptomycin is obtained from -

AVirus
BBacteria
CAlgae
DFungi

Question 18 of 50

HIV Virus destroy-

ARBC
BT-4 Lymphocytes
CNeuron
DNone of these

Question 19 of 50

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 20 of 50

The confirmatory test for HlV virus causing AlDS is :

ACDR count
BWestern blot test
CELISA test
DPCR

Question 21 of 50

Microorganisms are seen only with -

AOpen eye
BNaked eye
CMicroscope
DNone

Question 22 of 50

The virus which attack the bacterial cell are called -

ATobacco mosaic virus
BCyanophage
CBacteriophage
DMycophages

Question 23 of 50

Father of microbiology_

ALeeuwenhoek
BLouis Pasteur
CRobert Koch
DHensen

Question 24 of 50

Which of the following is edible fungi ?

AMucor
BPenicillium
CAgaricus
DRhizopus

Question 25 of 50

Which micro organism causes Hepatitis B?

AVirus
BProtozoa
CBacteria
Dss

Question 26 of 50

ln bakery when yeast is added in Kneaded flour it become soft and spongy due to -

AYeast produce benzoic acid
BProduction of CO2 makes the bread spongy
CYeast makes the flour soft
DYeast produce acetic acid and alcohol which makes the bread soft

Question 27 of 50

Viruses are parasitic, having DNA/RNA but they can be crystallized and lack respiration. Thus they are treated as

ALiving materials
BNon-living materials
CBoth living and non-living materials
DCellulose

Question 28 of 50

AIDS virus contain -

ASingle stranded RNA
BDouble stranded RNA
CSingle stranded DNA
DDouble stranded DNA

Question 29 of 50

lodine is obtain from -

ALaminaria
BPolysiphonia
CPorphyra
DChlorella

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

Kelps are-

AFresh water algae
BMarine algae rich in iodine
CTerrestrial
DAmphibious

Question 32 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 33 of 50

The disease hydrophobia is caused due to -

ABacteria
BFungi
CVirus
DAlgae

Question 34 of 50

Symbiotic association of mycorrhiza is between-

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

Question 35 of 50

Bacteria was discovered first by -

ALeeuwenhoek
BRobert hook
CLouis Pasteur
DRobert Koch

Question 36 of 50

Lichen which grow on the bark of tree-

ASaxicoles
BCorticoles
CParmelia
DAscocoles

Question 37 of 50

Lichen which grow on stones are called-

ASaxicoles
BCorticoles
CSexotelus
DAscocoles

Question 38 of 50

Which of the following does not have any enzyme in its cells?

ALichen
BVirus
CBacteria
DAlgae

Question 39 of 50

lnfectious disease small pox is caused due to-

AVirus
BBacteria
CFungi
DAlgae

Question 40 of 50

Bacteria helpful in making curd from milk -

AMycobacterium
BStaphylococcus
CLactobacillus
DYeast

Question 41 of 50

Name of bacteria which cause tuberculosis -

AMycobacterium tuberculosis
BVibrio cholerae
CBacillus coli
DEscherichia coli

Question 42 of 50

The disease AIDS is caused by -

ABacteria
BFungi
CVirus
DProtozoan

Question 43 of 50

Dog bite can cause rabies. Which among the following other animals can also cause rabies?

ADonkey
BBat
CHorse
DCrocodile

Question 44 of 50

ln the context of the spread of germs by faecal matter, which of the following does NOT figure in the F-Diagram ?

AFingers
BFluids
CFlies
DFungi

Question 45 of 50

Bacteria do not possess-

APlasma membrane
BCell wall
CMitochondria
DRibosomes

Question 46 of 50

Viruses that infect bacteria are called -

ABacteriophages
BBasophils
CBasal body
DBasidiospores

Question 47 of 50

Refrigeration is a process in which -

ABacteria are destroyed
BGrowth of bacteria reduced
CBacteria become inactive
DCytoplasm of bacteria contract

Question 48 of 50

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

Avirus
Bbacteria
Cmycoplasma
Dbacteriophage

Question 49 of 50

Red colour of red sea is due to-

AMoss
BAlgae
CFungi
DBacteria

Question 50 of 50

The bacillus heamophilus influenza causes -

AWhooping Cough
BA form of meningitis in young children
CPneumonia
Dlnfluenza