WorksheetsMicrobiology
Total questions: 20
Worksheet time: 10mins
Father of microbiology is
Louis Pasteur
Lister
A.V. Leeuwenhock
Robert Koch
According to Pasteur statements which
one of the following is true
Living organisms discriminate between
stereoisomers
Fermentation is a aerobic process
Living organisms doesn’t discriminate
between stereoisomers
Both a and c
The order of stains in Gram-staining
procedure is
Crystal violet, Iodine solution, Alcohol,
Saffranine
Iodine solution, Crystal Violet, Saffranine,
Alcohol
Alcohol, Crystal Violet, Iodine solution,
Saffranine
All of these
If more than one stain is used, such
staining is called
Simple staining
Negative staining
Differential staining
None of these
The action of alcohol during Gram staining is
Allows the color
It adds color
Decolorises the cells
None of these
Staining material of gram positive
bacterium is
Fast green
Haematoxylon
Crystal violet
Safranin
In electron microscope, what material is used as an objective lense?
Magnetic coils
Superfine glass
Aluminium foils
Electrons
The electron passed out from the specimen are called
Primary electrons
Secondary electrons
Tertiary electrons
None of these
In electron microscope source of electrons is from
Mercury lam
Tungsten metal
Both a and b
None of these
The main feature of prokaryotic organism is a. Absence of locomotion b. Absence of nuclear envelope c. Absence of nuclear material d.
Absence of locomotion
Absence of nuclear envelope
Absence of nuclear material
Absence of protein synthesis
Magnification range of light microscope is
1000x – 5000x
1000x – 2000x
500x – 1000x
None of these
Electron Microscope was discovered by
Prof. Fritz
Janssen and Hans
Knoll and Ruska
None of these
Meosomes are also known as
Mitochondria
Endoplasmic reticulum
Plasmids
Chondroids
The ability of Microscope to distinguish two objects into two separate objects, is called
Resolving power
Wave length
N.A
None of these
Condensation of light in light Microscope is by a. b. c. d.
Objective
Condensor
Ocular
All of these
Microorganisms are _____________ found in nature
Rarely
Abundantly
Not
None
Aquatic microbiology deals with
Water purification, Ecology
Diagnosis of disease
Soil fertility
None
The image obtained in a compound microscope is
Real
Virtual
Real inverted
Virtual inverted
First Pasteur conducted fermentation experiments in
Milk
Food material
Fruit juices
Both a and c
Source of light in fluorescence microscopy is from
Mercury lamp
Sunlight
Both a and b
None of these
