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.

151.

Mode of transmission for 'Yersinia pestis' is

A. Rodent bite
B. Dog's bite
C. Cat's stretch
D. Flea's bite
Answer» E.
152.

Cytomegalovirus is a 'pathogen' that is transferred through

A. Breast feeding
B. Water
C. Air
D. Soil
Answer» B. Water
153.

Mode of transmission for 'B. burgordferi' is

A. Sexual contact
B. Tick bite
C. Parasites
D. Louse bite
Answer» C. Parasites
154.

A disease characterized by prolonged weight loss, polyarithritis and diarrhoea is known as

A. Syphilis
B. Urinogenital tract
C. Whipple's disease
D. Arthritis
Answer» D. Arthritis
155.

Gram positive rod that causes food poisoning is called

A. Bacillus cerus
B. Bacillus anthracis
C. Bacillus sabtlis
D. Bacillus
Answer» B. Bacillus anthracis
156.

Atypical mycobacterium that can produce colonies in dark are named as

A. Photochromogens
B. Scotochromogens
C. Non chromogens
D. Rapidly growing mycobacterium
Answer» C. Non chromogens
157.

If an infection has worldwide distribution, it is termed as

A. Epidemic
B. Latent
C. Pandemic
D. Endemic
Answer» D. Endemic
158.

'AIDS' stands for

A. Human immuno virus
B. Acquired immunodeficiency syndrome
C. Acquired infection disorders
D. Death fever
Answer» C. Acquired infection disorders
159.

Which is not included in portal of entry of skin ?

A. Plasmodium vivax
B. Rabies virus
C. Clostridium tetani
D. Poliovirus
Answer» E.
160.

M. fortuitum-cheloni is a 'mycobacterium' that rarely causes disease in

A. Pigs
B. Goats
C. Rats
D. Human
Answer» E.
161.

An inflammation caused by Y. enteroclolitica in mesenteric lymph nodes in abdomen, named as

A. Enterocolititis
B. Mesentric adentitis
C. Anorexia
D. Inflammation
Answer» C. Anorexia
162.

Portal of entry for 'H. influenzae' is

A. Genital tract
B. Upper respiratory tract
C. Skin
D. Mouth
Answer» C. Skin
163.

Common name for 'tetanus' is

A. Headache
B. Fever
C. Locked jaw
D. scurvy
Answer» D. scurvy
164.

M. bovis is also causative agent for 'Tuberculosis' in human and is transmitted by

A. Cow's milk
B. Goat's milk
C. Camel's milk
D. Poultry
Answer» B. Goat's milk
165.

'Cardiobacterium' is member of human normal flora and is found in

A. Colon
B. Mouth
C. Anal canal
D. Genital organ
Answer» B. Mouth
166.

Gram negative rods that do not ferment 'lactos' e is

A. Bacillus
B. Bacillus sabtlis
C. Salmonella
D. Klebsilla
Answer» D. Klebsilla
167.

In Q fever word 'Q' is used to denote

A. Question
B. Query
C. Quotation
D. Quality
Answer» C. Quotation
168.

'Chlamydiae' are obligate organisms that can grow only within cell and hence are

A. Intracellular
B. Exogenic
C. Endogenic
D. Environmental lovers
Answer» B. Exogenic
169.

'Q?' fever was first described by

A. Robert brown
B. Robert Hook
C. Camel fisher
D. Edward Holbrook Derrick
Answer» E.
170.

Reservoir for avian 'influenza' virus is

A. Chickens
B. Fowls
C. None of These
D. Both a and b
Answer» E.
171.

Example of Actinomycetes, is normal flora of oral cavity, known as

A. Actinomycetes israelii
B. Nocardia asteroids
C. Fungi
D. Hyphae
Answer» B. Nocardia asteroids
172.

A family of positively charged 'peptides' that have antiviral activity are named as

A. Beta Defensin
B. Leukocytes
C. Defensin
D. Granulocytes
Answer» D. Granulocytes
173.

Presence of a new organism that is not causing any symptom and is not a member of normal flora, known as

A. Colonizations
B. Local population
C. Neutral species
D. Normal specie
Answer» B. Local population
174.

Bacterial toxins that are 'lipopolysaccharides' in nature and are integral part of bacterial cell wall are called

A. Exotoxins
B. Toxin
C. Endotoxins
D. None of above
Answer» D. None of above
175.

Reservoir for 'rabies' virus is

A. Shrunk
B. Raccoons
C. Bats
D. All of Above
Answer» E.
176.

Entry portal for 'influenza' virus is

A. Skin
B. Respiratory tract
C. Gastrointestinal tract
D. Mouth
Answer» C. Gastrointestinal tract
177.

Drug of choice for 'Tularemia' is

A. Streptomycin
B. Pencillin G
C. Cephalosporins
D. Beta lactam
Answer» B. Pencillin G
178.

M. tuberculosis multiplies and survive within a cellular 'vacuole' named as

A. Food vacuole
B. Phagosomes
C. Phagocytes
D. Osteocytes
Answer» C. Phagocytes
179.

Human diseases acquired by animals are known as

A. Infections
B. Syndrome
C. Zoonosis
D. Disorders
Answer» D. Disorders
180.

'Brazilian purpuric' fever is caused by

A. Haemophilus influenzae
B. Haemophilus pneumoniae
C. Haemophilus aegyptius
D. H. pylori
Answer» D. H. pylori
181.

'Rat' bite fever in humans is caused by

A. Spirillum minor
B. Streptobacillus moniliformis
C. None of these
D. Both a and b
Answer» E.
182.

Q fever is caused by obligate intracellular organism named as

A. Coxiella burnetii
B. Ehrlichia chaffeensis
C. Rickettsia akari
D. Rickettsia rickettsial
Answer» B. Ehrlichia chaffeensis
183.

A gram-negative rod known as K. kingae is part of human normal 'flora' and is found in

A. Colon
B. Anal canal
C. Oropharynx
D. Vagina
Answer» D. Vagina
184.

Lethal factor and edema factors are two exotoxins collectively, named as

A. Anthrax toxins
B. Exotoxins
C. Endotoxins
D. Enterotoxins
Answer» B. Exotoxins
185.

Staphylococcus aureus' and 'Streptococcus pyogenes' are two medically important genera of gram positive cocci, known as

A. Fermenter
B. Human pathogens
C. Rods
D. Spirochete
Answer» C. Rods
186.

In premature infants, 'sepsis' and 'meningitis' is caused by

A. Chryseobavterium meningosepticum
B. Ehrlichia equi
C. Citrobacter
D. Chromobacter
Answer» B. Ehrlichia equi
187.

'Gardnerella vaginalis' is specie that is located in

A. Vagina
B. Urethera
C. Urinary tract
D. Uterus
Answer» B. Urethera
188.

A sexually transmitted disease that is characterized by destruction of bones and soft tissues, as well as genital ulceration, is known as

A. Ulcer
B. Cancer
C. Granuloma inguinale
D. Osteroprosis
Answer» D. Osteroprosis
189.

A life-threatening childhood infection characterized by 'shocks' and 'purpura' is known as

A. Fever
B. Childhood infection
C. Death fever
D. Brazilian purpuric fever
Answer» D. Brazilian purpuric fever
190.

Anthrax is a disease caused by 'Bacillus anthracis' that is common in most animals but rare in

A. Birds
B. Human
C. Algae
D. Fungi
Answer» C. Algae
191.

Diseases caused by bacteria follow two major mechanism, namely toxin productions and

A. Infection
B. Invasion
C. Inflammation
D. Both b and c
Answer» E.
192.

'Candida albican' enters body through

A. Skin
B. Genital tract
C. Respiratory tract
D. Mouth
Answer» C. Respiratory tract
193.

Portal of entry for 'rubella' virus is

A. Respiratory tract
B. Urinary tract
C. Genital organs
D. Nose
Answer» B. Urinary tract
194.

'Bacillus cereus' is a human pathogen that is transmitted due to

A. Cooked meat
B. Reheated rice
C. Seafood
D. Milk
Answer» C. Seafood
195.

Habitat for 'Actinomycetes israelii' is

A. Anal canal
B. Genital tract
C. Oral cavity
D. Skin
Answer» D. Skin
196.

Causative agent for Human 'granulocytic ehrlichiosis' is

A. E. chaffeensis
B. Ehrlichia equi
C. Citrobacter
D. E.Coli
Answer» C. Citrobacter
197.

'Mycoplasma' form colonies that resemble in shape with

A. Fungi
B. Fried egg
C. Bread
D. Cream
Answer» C. Bread
198.

Mycoplasma' are free living and small organisms, having size approximately

A. 0.5 µm
B. 0.4 µm
C. 0.3 µm
D. 0.2 µm
Answer» D. 0.2 µm
199.

Most common example of 'spirochetes' are

A. Treponema
B. Borrelia
C. Mycobacterium leprae
D. Mycolasma
Answer» B. Borrelia
200.

Wound infection caused by 'Pasteurella multocida' is associated with bite of

A. Cat
B. Dog
C. None of these
D. Both a and b
Answer» E.