Quiz Answers
- Which one of the following fungi is the most serious threat in a bone marrow transplant unit?
- a. Candida albicans
- b. Aspergillus ✅
- c. Blastomyces
- d. Cryptococcus
- Direct microscopic count can be done with the aid of
- a. Neuberg chamber ✅
- b. Anaerobic chamber
- c. Mineral oil
- d. Olive oil
- The image obtained in a compound microscope is
- a. Real
- b. Virtual ✅
- c. Real inverted
- d. Virtual inverted
- Enzymes responsible for alcoholic fermentation
- a. Ketolase
- b. Zymase ✅
- c. Peroxidase
- d. Oxidase
- Which type of spores are produced sexually?
- a. Conidia
- b. Sporangiospores
- c. Ascospores ✅
- d. None of these
- Bacterial transformation was discovered by
- a. Ederberg and Tatum ✅
- b. Beadle and Tatum
- c. Griffith
- d. None of these
- Father of microbiology is
- a. Louis Pasteur
- b. Lister
- c. A.V. Leeuwenhock ✅
- d. Robert Koch
- The antiseptic method was first demonstrated by
- a. Lwanowski
- b. Lord Lister ✅
- c. Edward Jenner
- d. Beijerinck
- Smallpox vaccine was first discovered by
- a. Robert Koch
- b. Louis Pasteur
- c. Lister
- d. Edward Jenner ✅
- The term mutation was coined by
- a. Pasteur
- b. Darwin
- c. Hugo de Vries ✅
- d. Lamarck
- Compound microscope was discovered by
- a. Antony von
- b. Pasteur
- c. Johnsen & Hans ✅
- d. None of these
- Father of Medical Microbiology is
- a. Pasteur
- b. Jenner
- c. Koch ✅
- d. A.L.Hock
- Disease that affects many people at different countries is termed as
- a. Sporadic
- b. Pandemic ✅
- c. Epidemic
- d. Endemic
- Prophylaxis of cholera is
- a. Protected water supply
- b. Environmental sanitation ✅
- c. Immunization with killed vaccines
- d. All of these
- In an electron microscope, what material is used as an objective lens?
- a. Magnetic coils ✅
- b. Superfine glass
- c. Aluminium foils
- d. Electrons
- The main feature of prokaryotic organisms is
- a. Absence of locomotion
- b. Absence of nuclear envelope ✅
- c. Absence of nuclear material
- d. Absence of protein synthesis
- The stalked particles on the cristae of mitochondria are called
- a. Glyoxysomes
- b. Peroxisomes ✅
- c. Oxysomes
- d. Spherosomes
- Antiseptic methods were first introduced by
- a. Lord Lister ✅
- b. Iwanowski
- c. Beijernick
- d. Edward Jenner
- Kuru disease in humans is caused by
- a. Bacteria
- b. Viroides
- c. Prions ✅
- d. Mycoplasma
- A mutation that produces termination codon is
- a. Mis-sense mutation
- b. Neutral mutation
- c. Non-sense mutation ✅
- d. Reverse mutation
- During conjugation, the genetic material will be transferred through
- a. Cell wall
- b. Medium
- c. Pili ✅
- d. Capsule
- Antiseptic surgery was discovered by
- a. Joseph Lister ✅
- b. Ernest Abbe
- c. Pasteur
- d. Beijerink
- Tuberculosis is a
- a. Waterborne disease
- b. Airborne disease ✅
- c. Foodborne disease
- d. Arthropod-borne disease
- Phagocytic phenomenon was discovered by
- a. Louis Pasteur
- b. Alexander Fleming
- c. Metchnikoff ✅
- d. Robert Koch
- Mesosomes are also known as
- a. Mitochondria
- b. Endoplasmic reticulum
- c. Plasmids
- d. Chondroids ✅
- Hybridoma technique was first discovered by
- a. Kohler and Milstein ✅
- b. Robert Koch
- c. ‘D’ Herelle
- d. Land Steiner
- The minimum number of bacteria required to produce clinical evidence of death in a susceptible animal under standard conditions is called
- a. LD50
- b. ID
- c. MLD ✅
- d. All of these
- In an Electron Microscope, the source of electrons is from
- a. Mercury lamp
- b. Tungsten metal ✅
- c. Both a and b
- d. None of these
- Griffith (1928) reported the phenomenon of transformation first in
- a. H. influenzae
- b. Bacillus species
- c. Pneumococci ✅
- d. E.coli
- The resolution power of the compound microscope is
- a. 0.2 micron ✅
- b. 0.2 millimeter
- c. 0.2 Angstrom units
- d. 0.2 centimeter
- The capacity of a given strain of microbial species to produce disease is known as
- a. Pathogen
- b. Virulence ✅
- c. Infection
- d. None of these
- Monoclonal antibodies are associated with the name of
- a. Burnet ✅
- b. Medwar
- c. Milstein Kohler
- d. Owen
- Lederberg and Tatum (1946) described the phenomena of
- a. Conjugation ✅
- b. Transformation
- c. Mutation
- d. Plasmids
- Hanging drop method for motility study was first introduced by
- a. Robert Koch
- b. Louis Pasteur
- c. Jenner
- d. Leeuwenhock ✅
- Electron microscope gives magnification up to
- a. 100 X
- b. 2000 X
- c. 50,000 X
- d. 2,00,000 X ✅
- Term vaccine was coined by
- a. Robert Koch
- b. Pasteur ✅
- c. Needham
- d. None of these
- The inventor of the Microscope is
- a. Galileo
- b. Antony von ✅
- c. Pasteur
- d. Koch
- First Pasteur conducted fermentation experiments in
- a. Milk
- b. Food material
- c. Fruit juices ✅
- d. Both a and c
- Modern concepts of chemotherapy were proposed by
- a. Paul Ehrlich ✅
- b. Joseph Lister
- c. Elie Metchnikoff
- d. None of these
- The role of phagocytosis was discovered by
- a. Paul Ehrlich
- b. Joseph Lister
- c. Elie Metchnikoff ✅
- d. Pasteur
- L-forms are discovered by
- a. Klein Berger ✅
- b. Louis Pasteur
- c. Robert Koch
- d. Antony von Leeuwenhock
- The causative organism of Rocky Mountain spotted fever was first described by
- a. Howard Ricketts
- b. da Rocha-lima
- c. Both a and b ✅
- d. Robert Koch
- The term bacteriophage was coined by
- a. De’Herelle ✅
- b. F.W. Twort
- c. Beijernick
- d. Jwanosky
- Viral infection of bacteria was discovered by
- a. De’Herelle
- b. F.W. Twort ✅
- c. Beijernick
- d. Jwanoksy
- The eye cannot resolve any image less than
- a. 1 µm
- b. 2 µm
- c. 7 µm
- d. 5 µm ✅
- Compound Microscope was discovered by
- a. A.V. Lewenhoek
- b. Pasteur
- c. Janssen and Hans ✅
- d. None of these
- Electron Microscope was discovered by
- a. Prof. Fritz
- b. Janssen and Hans
- c. Knoll and Ruska ✅
- d. None of these
- Magnification range of the light microscope is
- a. 1000x – 5000x
- b. 1000x – 2000x ✅
- c. 500x – 1000x
- d. None of these
- Condensation of light in a light microscope is by
- a. Objective
- b. Condenser ✅
- c. Ocular
- d. All of these
- Light gathering capacity of a microscope is called
- a. Numerical aperture ✅
- b. Angular aperture
- c. Both a and b
- d. None of these
