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WorksheetsTest
Total questions: 50
Worksheet time: 52mins
Which type of culture media is shown in this
image?
Solid media
Semi solid media
Liquid media
All of the above
Donated blood undergoes screening
for which diseases?
HIV
Viral Hepatitis
Diabetes
Both A & B
In a blood transfusion, the infectious agent or
infection usually has the following
characteristics:
Presence in the blood for long periods
Stability in blood stored at 4 degree C or lower
Long incubation period
All of the above
In syphilis, a primary lesion usually occurs
about three weeks after exposure is called?
Boils
Chancre
Checer
All of the above
Immunity acquired after an infection is
Active immunity
Passive immunity
Innate immunity
Both B & C
Match the following
A-1, B-2, C-3, D-4
A-2, C-1, B-3, D-4
A-1,B-2, C-4, D-3
A-4, B-3, C-2, D-1
How often these blood components can
be donated
A(1), B(2), C(4), D(3)
A(1), B(4), C(2),D(3)
A(4), B(I), C(2), D(3)
A(1), B(4), C(3), D(2)
An autoimmune disorder may result in:
The destruction of one or more types of body
tissue
Abnormal growth of an organ
Changes in organ function
All of these
Rheumatoid arthritis is an..……………disease that affects
the…………
Autoimmune/nerves
Autoimmune/ joints
Immunodeficiency/ muscles
Allergic/ muscles
An autoimmune disorder affecting the myelin
sheath
- the protective coating that surrounds
nerve cels
Rheumatoid arthritis
Diabetes mellitus
Myasthenia gravis
Multiple sclerosis
In Hashimoto's thyroiditis, thyroid hormone
production
Slows
Increases
Remain same
Doesn't affect thyroid.
• Pernicious anemia affects a protein called
intrinsic factor that helps the intestines
absorb -------------from food
Vitamin B-6
Vitamin B-12
Protein
All of the above
What type of angulation of tilting of the slide is required to spread the culture on slide in
negative staining?
Acute angle
Obtuse angle
Right angle
Reflex angle
What is the name of the procedure performed
under sterile conditions to eliminate
contamination in hopes to obtain a pure
culture of one type of microorganism?
Sterilization technique
Disinfectant technique
Aseptic Condition
Pathogen technique
What is the purpose of adding nutrients to the
culture media?
Microbial growth
To kill microbes
To provide variety in growth
To remove toxicity in the culture
At what temperature is the medium allowed to
cool after the agar is melted perfectly?
35c
40c
45c
20c
Which method is shown in this image?
Tube method
Streak plate technique
Spread method
None of the above
Which is the preferred method of specimen
collection for a urine culture?
Mid stream urine
Clean catch urine
Whole urine
None of the above
Choose the right quantity of peptone & agar
for MacConkey agar.
17 g/ 13.5 g
15 g/ 12.5 g
12 g/ 10.5 g
10 g/ 15.5 g
Which of the following is not a component of
LJ medium?
Dextrose
Malachite green
Egg suspension
Monopotassium phosphate
Which of the following things do we need to
avoid while preparing the LJ medium?
Air bubbles
Aseptically mixing of component
121°C temperature
Slanted position of tubes
For which of the following microorganisms is
the SDA used?
Yeasts, molds and aciduric bacteria
Yeasts, parasites and aciduric bacteria
Yeasts, virus and aciduric bacteria
Fungi, protozoa and aciduric bacteria
At what temperature and duration should the
test tube be incubated in the test tube method
of coagulase test?
40 - 47° C for 6 hours
25 - 30° C for 3 to 4 hours
35 - 37° C for 10 - 12 hours
35 - 37° C for 3 to 4 hours
In what type of agar plate the direct plate
method of oxidase test is carried out?
Non-selective agar plate
Selective agar plate
Heating plate
Nutrient plates
In the test-tube method of oxidase test,
the color changes to purple within 2 to 3
minutes.
What does it represent?
Oxidase positive
Oxidase negative
Delayed oxidase positive
None of the above
Which of the following is not the component of
gaspak anaerobic system?
Anaerobic jar
Lid with gasket
Indicator strip
Non catalyst
Which of the following are not among the
reducing agents used for the bacterial
cultivation?
0.5% glucose
1% Ascorbic acid
0.1% Cysteine
0.1% Sulphuric acid
Why is paraffin oil put in Robertson cooked
medium after inoculation?
To prevent 02 entry
To prevent CO2 entry
To prevent NO2 entry
To prevent S02 entry
What do you understand by the term colony
morphology?
Preparation and processing of reagents for
culture
Examination of the form and structure of
bacterial colonies
Classification of bacterial colonies in terms of
diseases it cause
Both A & C
Which is the useful preliminary step in
identifying bacteria in bacterial culture?
Colony morphology
Colony histology
Colony physiology
Colony physiology
What would be the appearance of the culture if
some bacteria does not produce any pigment?
Yellow
Pink or Purple
Red
White or Gray
Which statement is true about the nutrient
agar?
Reduces the growth of bacteria
Grow a variety of bacteria and fungi, and
contains many nutrients needed for the
bacterial growth
Grow only few bacteria and fungi, and contains
low nutrients needed for the bacterial growth
Kills all the bacteria
Which of the following is not needed in the
composition of nutrient agar?
10% NaCI
0.3% beef extract/yeast extract
0.5% Peptone
Distilled water
What is the correct amount of nutrient agar
powder and distilled water required for
nutrient agar preparation?
20 g of nutrient agar powder in 1 liter of distilled
water
22 g of nutrient agar powder in 2 liter of distilled
water
24 g of nutrient agar powder in 1 liter of distilled
water
28 g of nutrient agar powder in 1 liter of distilled
water
How do we add extra nutrients to make blood
agar enriched culture media?
By adding blood to the basal medium.
By adding serum to the basal medium.
By adding egg yolk to the basal medium.
All of the above are Correct
Which of the following shows no hemolysis of
RBC?
Beta hemolysis
Delta hemolysis
Alpha hemolysis
Gamma hemolysis
Why does the medium turn brown in chocolate
agar?
Due to the lysis (breakdown) of red blood cells
Due to the bacteria
Due to the proper autoclaving
Due to nutrients
Which of the following is not the indication for
stool chemistry?
Screen colon cancer
Look for parasites like pinworms
Look for causes of urinary tract infection
Check malabsorption syndrome
In which all conditions, plasty stool can be
seen?
Common bile duct obstruction
Celiac diseases
Cystic fibrosis
All of the above
Increased level of ketone bodies in blood
indicates what disease?
Diabetic ketoacidosis
Diabetics mellitus
Diabetes insipidus
None of the above
How is bilirubin formed?
Breakdown in spleen and bone
Breakdown in liver and bone
Breakdown in lymphatics and blood
Breakdown in gall bladder and kidney
What is the most commonly used methods for
bilirubin
Harrison spot test
Hare shred test
Haustin test
Honitus test
What is the shape of yeast cells?
Ovoid bodies
Round bodies
Biconcave bodies
Concave bodies
Yeast cells are found in which diseases?
UTIs
Diabetes mellitus
Vaginal Candidiasis
Gastrointestinal infection
Which of the following is not the function of
serum cholesterol?
Steroid formation
For cellular membranes
For cell wall formation
None of the above
How much is the ideal wavelenght and
temperature used during testing for serum
total cholesterol?
Wavelength (205 nm) & temperature (30
degrees)
Wavelength (305 nm) & temperature (33
degrees)
Wavelength (505 nm) & temperature (37
degrees)
Wavelength (705 nm) & temperature (39
degrees)
What is the normal reference value for healthy
cholesterol?
>200 mg/dl
>400 mg/dI
>600 mg/dl
>800 mg/dl
What is the precipitating reagent used for the
estimation method of serum HDL cholesterol?
Polyethylene methanol
Polyethylene glycol
Poly ethyl ethanol
Polyester
Which of the following are not functions of
phosphorous?
Helps with bone growth
Helps with energy storage
Helps with nerve & muscle production
Helps with exercise
Which is the common method used for serum
phosphorous test?
Mod Gomorri's method
Mod Goon's method
Mod Gomorrah's method
Mod Gorgon's method
