Explore topic-wise MCQs in Microbiology.

This section includes 204 Mcqs, each offering curated multiple-choice questions to sharpen your Microbiology knowledge and support exam preparation. Choose a topic below to get started.

51.

'Interferons' stops growth of viruses by blocking translation of viral

A. Proteins
B. Capsids
C. Capsomere
D. Glycoproteins
Answer» B. Capsids
52.

'Ehrlichia equi' is also known as

A. E. chaffeensis
B. E. coli
C. Citrobacter
D. Anaplasma phagocytophilum
Answer» E.
53.

Golden color of 'S. aureus' is due to pigment named as

A. Chloroplast
B. Carotenoids
C. Chromoplast
D. Xanthophyll
Answer» C. Chromoplast
54.

'Gangrene' is caused by

A. Clostridium botulinum
B. Clostridium tetani
C. Clostridium perfringens
D. Clostridium difficile
Answer» D. Clostridium difficile
55.

Causative agent for 'neonatal meningitis' is

A. E.coli
B. Shigella
C. Klebsilla
D. Proteus
Answer» B. Shigella
56.

According to rate of growth, atypical bacteria are classified into

A. 3 classes
B. 5 classes
C. 4 classes
D. 2 classes
Answer» D. 2 classes
57.

Actinomycetes' are known as

A. Fungi
B. Algae
C. True bacteria
D. Eubacteria
Answer» D. Eubacteria
58.

'Klebsilla' is residing in

A. Gut of human
B. Colon of human
C. Nose of humans
D. Eyes of humans
Answer» B. Colon of human
59.

Water is mode of ' transmission' for

A. Tetanus
B. Legionnaire's disease
C. Cat-scratch fever
D. Lyme diseases
Answer» C. Cat-scratch fever
60.

'penicillinase' producing strain are isolated from patients that exhibits high level resistance in

A. 1973
B. 1967
C. 1976
D. 1984
Answer» D. 1984
61.

Drug used for 'gonococcal' infection is

A. Pencillin G
B. Ceftriaxone
C. Streptogramins
D. Vancomycin
Answer» C. Streptogramins
62.

'E. chaffeensis primarily' infect the

A. Red blood cell
B. Serum
C. Mononucleotide leukocytes
D. Plasma
Answer» D. Plasma
63.

'Acintobacter' was previously named as

A. Herellea
B. Mina
C. Both a and b
D. None of above
Answer» D. None of above
64.

In human body 'Brucella' resides in the

A. Reticuloendothelial system
B. Respiratory tract
C. Genital Tract
D. Gastrointestinal tract
Answer» B. Respiratory tract
65.

Wild birds are 'reservoir' for the

A. Dengue virus
B. Avian influenza virus
C. Encephalitis viruses
D. Rabies virus
Answer» D. Rabies virus
66.

Quantitative measurement of 'pathogenicity' is termed as

A. Infectious measurement
B. Disease measurement
C. Virulent factor
D. Virulence
Answer» E.
67.

Mycobacterium tuberculosis is 'Bacillus' that infects approximately, world's

A. One third population
B. Half population
C. One forth population
D. Whole population
Answer» B. Half population
68.

Cells that are not specific in action and are a type of white blood cells are known as

A. Defensive cell
B. Natural killing cells
C. Phagocytes
D. Endocytes
Answer» C. Phagocytes
69.

Small gram positive rods called as 'Brucella' lacks

A. Nucleic acid
B. Proteins
C. Chromosomes
D. Capsules
Answer» E.
70.

Scaled skin syndrome in young children is caused by a 'toxin' called

A. Exfoliatin
B. Endotoxins
C. Enterotoxins
D. P-V leukocidin
Answer» B. Endotoxins
71.

Proteus?spp are present in

A. Mouth
B. Skin
C. Colon
D. Vagina
Answer» C. Colon
72.

A type of phagocytes that are responsible for detection, destroying and engulfing pathogens are named as

A. Phages
B. Bacteriophages
C. Micophages
D. Macrophages
Answer» E.
73.

For M. 'tuberculosis' initial site for infection is

A. Skin
B. Lungs
C. Mucous
D. Nucleic acid
Answer» C. Mucous
74.

Only bacteria that is acid fast Bacillus is

A. Yersinia specie
B. Mycobacteria
C. Brucella specie
D. Francisella tularensis
Answer» C. Brucella specie
75.

Which symbol is used in unknown causative agent ?

A. P
B. R
C. Q
D. S
Answer» D. S
76.

'Treponema pallidum' is transmitted by the

A. Intimate contact
B. Blood transfusion
C. Respiratory aerosol
D. Gastrointestinal tract
Answer» B. Blood transfusion
77.

'Genital tract ' is portal of entry for

A. Human papilloma virus
B. Candida albicans
C. Neisseria gonorrhoeae
D. All of above
Answer» E.
78.

Leukaemia's caused by

A. HIV
B. Human T cell lymphotrophic virus
C. HDV
D. HBV
Answer» C. HDV
79.

'Civet cat' is a reservoir for the

A. Coronavirus
B. Adenovirus
C. Rubella virus
D. Rabies virus
Answer» B. Adenovirus
80.

'Tetanus' is transmitted through

A. Water
B. Soil
C. Air
D. Sneezing
Answer» C. Air
81.

Alternative name for 'Pseudomonas pseudomallei' is

A. Pseudomonas
B. H. pylori
C. Buskholderia pseudomallei
D. Flavobacterium
Answer» D. Flavobacterium
82.

Actinobacillus 'actinomycetemcomitans' are found in

A. Soil
B. Water
C. Normal flora
D. Mud
Answer» D. Mud
83.

A pathogen that produceses a purple color pigment is named as

A. Chromobacterium
B. Cardiobacterium
C. Citrobacter
D. Edwardsiella
Answer» B. Cardiobacterium
84.

A bacterial pathogen, gram-negative coccobacillus found in water supplies, known as

A. Acintobacter
B. Actinobacillus
C. Achromobacter
D. Aeromonas
Answer» D. Aeromonas
85.

'Gonorrhea' is a disease that is caused by neisseria gonorrhoea, may get entry in body through

A. Genital tract
B. Respiratory tract
C. Gastrointestinal tract
D. Urinary tract
Answer» B. Respiratory tract
86.

'Fish tank granuloma' is a disease that is caused by

A. M. kanasii
B. M. tuberculosis
C. M. marinum
D. M. leprae
Answer» D. M. leprae
87.

Scientific study to test blood serum is known as

A. Diagnosis
B. Analysis
C. Serology
D. Blood culture
Answer» D. Blood culture
88.

An opportunistic pathogen that causes 'pneumonia' and 'sepsis' in humans, associated with hospitals, known as

A. Granuloma
B. Alcalligenes
C. Compylobacter
D. Chromobacter
Answer» C. Compylobacter
89.

Arizona is a pathogen that belong to a family, called

A. Enteriobacteriaceae
B. Fungi
C. Algae
D. Angiosperm
Answer» B. Fungi
90.

Portal of entry for 'clostridium tetani' is

A. Nose
B. Wound
C. Lesions
D. Mouth
Answer» C. Lesions
91.

'Replasing fever' is caused by

A. B. burgdorferi
B. B. recurrentis
C. T. pallidum
D. L. interrogans
Answer» C. T. pallidum
92.

'Lactobacillus' species are present in adult women's

A. Mouth
B. Breast
C. Skin
D. Vagina
Answer» E.
93.

Inflammation of digestive tract due to infections by bacterial pathogen Y. enterovolitica is called as

A. Anorexia
B. Lack of apatite
C. Enterocolitis
D. Inflammation
Answer» D. Inflammation
94.

A human pathogen that causes abscesses of tonsils, sinuses and brain in mixed anaerobic infection is known as

A. Veillonella parvula
B. Wolbachia
C. Treponema
D. Eikenella
Answer» B. Wolbachia
95.

'Shigellosis' is a disease found particularly in

A. Pigs
B. Rats
C. Human
D. Goats
Answer» D. Goats
96.

If an anaerobic gram positive cocci occurs in group of four or eight, resuting arrangement is known as

A. Tetard
B. Sarcina
C. Diplococcus
D. Streptococcus
Answer» C. Diplococcus
97.

Animal sources for 'Brucella' includes cattle, goats, sheep and

A. Pigs
B. Chickens
C. Fowl
D. Reptiles
Answer» B. Chickens
98.

Viridians streptococci is residing in human, mouth and

A. Skin
B. Mucosal membrane
C. Nasopharynx
D. Nose
Answer» D. Nose
99.

'AIDS' is caused by

A. HIV
B. HBV
C. HCV
D. HAV
Answer» B. HBV
100.

A pore forming 'toxin' that especially damage white blood cells are known as

A. P-V leukocidin
B. Exfoliatin
C. Enterotoxins
D. Exotoxin
Answer» B. Exfoliatin