Q. Which of the following is NOT a type of bioreactor?
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A.
Batch reactor
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B.
Continuous stirred-tank reactor
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C.
Membrane bioreactor
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D.
Gas chromatograph
Solution
A gas chromatograph is an analytical instrument used for separating and analyzing compounds, not a type of bioreactor.
Correct Answer:
D
— Gas chromatograph
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Q. Which of the following items can be sterilized using dry heat?
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A.
Plastic syringes
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B.
Glassware
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C.
Rubber gloves
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D.
Surgical drapes
Solution
Glassware can be sterilized using dry heat, as it can withstand high temperatures without damage.
Correct Answer:
B
— Glassware
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Q. Which parameter is crucial for optimizing fermentation in reactors?
-
A.
Temperature
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B.
Color
-
C.
Shape
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D.
Size
Solution
Temperature is a crucial parameter that affects microbial metabolism and product yield in fermentation reactors.
Correct Answer:
A
— Temperature
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Q. Which process is commonly used to remove suspended solids from water?
-
A.
Filtration
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B.
Chlorination
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C.
Fluoridation
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D.
Sedimentation
Solution
Filtration is the process used to remove suspended solids from water.
Correct Answer:
A
— Filtration
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Q. Which sterilization method is most effective for heat-sensitive materials?
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A.
Autoclaving
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B.
Dry heat
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C.
Radiation
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D.
Boiling
Solution
Radiation sterilization is most effective for heat-sensitive materials, as it does not involve high temperatures.
Correct Answer:
C
— Radiation
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Q. Which technique is commonly used for the clarification of fermentation broth?
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A.
Chromatography
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B.
Filtration
-
C.
Centrifugation
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D.
Precipitation
Solution
Centrifugation is commonly used to separate cells and debris from the fermentation broth.
Correct Answer:
C
— Centrifugation
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Q. Which type of agitation is commonly used in intravenous drug preparation?
-
A.
Mechanical agitation
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B.
Thermal agitation
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C.
Chemical agitation
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D.
Manual agitation
Solution
Mechanical agitation is commonly used to ensure thorough mixing of intravenous drug solutions.
Correct Answer:
A
— Mechanical agitation
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Q. Which type of fermentation occurs in muscle cells during intense exercise?
-
A.
Alcoholic fermentation
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B.
Lactic acid fermentation
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C.
Acetic acid fermentation
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D.
Butyric acid fermentation
Solution
Lactic acid fermentation occurs in muscle cells during intense exercise when oxygen levels are low.
Correct Answer:
B
— Lactic acid fermentation
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Q. Which type of fermentation reactor allows for continuous input and output?
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A.
Batch reactor
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B.
Fed-batch reactor
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C.
Continuous stirred-tank reactor
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D.
Plug flow reactor
Solution
Continuous stirred-tank reactors (CSTR) allow for continuous input and output, maintaining a steady state of operation.
Correct Answer:
C
— Continuous stirred-tank reactor
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Q. Which type of filtration uses a membrane to separate contaminants from water?
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A.
Sand filtration
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B.
Activated carbon filtration
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C.
Microfiltration
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D.
Chlorination
Solution
Microfiltration uses a membrane to separate contaminants from water.
Correct Answer:
C
— Microfiltration
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Q. Which type of inhibition can be overcome by increasing substrate concentration?
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A.
Non-competitive inhibition
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B.
Competitive inhibition
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C.
Uncompetitive inhibition
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D.
Allosteric inhibition
Solution
Competitive inhibition can be overcome by increasing substrate concentration, as it competes with the substrate for the active site.
Correct Answer:
B
— Competitive inhibition
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Q. Which type of microorganism is commonly used in the production of antibiotics?
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A.
Bacteria
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B.
Viruses
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C.
Fungi
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D.
Algae
Solution
Fungi, particularly species like Penicillium, are commonly used in the production of antibiotics.
Correct Answer:
C
— Fungi
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Q. Which type of support is commonly used for enzyme immobilization?
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A.
Cellulose
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B.
Silica gel
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C.
Polyacrylamide
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D.
All of the above
Solution
All of the mentioned supports, including cellulose, silica gel, and polyacrylamide, are commonly used for enzyme immobilization.
Correct Answer:
D
— All of the above
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