Industrial Biotechnology — Part 1 MCQs with Explanations
Practice high-yield Biotechnology Engineering MCQs on Industrial Biotechnology — Part 1 with worked academic solutions for PPSC, FPSC, NIH, NTS.
Questions
40
Difficulty Level
Exam-Level
Target Exams
PPSC, FPSC, NIH...
Estimated Time
48 mins
Exam-Level PPSC FPSC NIH NTS
Verified for Commission Syllabus • Oct 14, 2026
40
Verified Practice Questions
Interactive test mode with detailed academic worked solutions
Live Progress|0/40 answered
✓0 correct
✗0 wrong
0% score
🎉 Set complete! All 40 questions answered.
Question 1 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following is the source of pro-vitamin A?
Correct Answer: Option B — Rhodotorula gracilis
Detailed Academic Explanation:
Rhodotorula gracilis is the correct answer to “Which of the following is the source of pro-vitamin A”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 2 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The first stage in the screening of microorganisms for industrial applications is
Correct Answer: Option B — Isolation
Detailed Academic Explanation:
Isolation is the correct answer to “The first stage in the screening of microorganisms for industrial applications is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 3 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The first commercially produced plant secondary metabolite using bioreactor technology is
Correct Answer: Option A — Shikonin
Detailed Academic Explanation:
Shikonin is the correct answer to “The first commercially produced plant secondary metabolite using bioreactor technology is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 4 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
"Substances added prior to or simultaneously with the fermentation which are incorporated without any major change into the molecule of the fermentation product and which generally cause increases in the yield or improves the quality of the product" can be referred to as
Correct Answer: Option D — Precursor molecules
Detailed Academic Explanation:
Precursor molecules is the correct answer to “"Substances added prior to or simultaneously with the fermentation which are incorporated without any major change into the molecule of the fermentation product and which generally cause increases in the yield or improves the quality of the product" can be referred to as”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 5 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following organisms used for the SCP production show the highest growth rate?
Correct Answer: Option A — Bacteria
Detailed Academic Explanation:
Bacteria is the correct answer to “Which of the following organisms used for the SCP production show the highest growth rate”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 6 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The production of wines is referred to as
Correct Answer: Option B — Enology
Detailed Academic Explanation:
Enology is the correct answer to “The production of wines is referred to as”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 7 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
For an enzyme catalysed reaction in a batch bioreactor, which one of the following is true under quasi-steady state conditions?
Enzyme-substrate complex concentration remains nearly constant is the correct answer to “For an enzyme catalysed reaction in a batch bioreactor, which one of the following is true under quasi-steady state conditions”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 8 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The term "mother of vinegar" is used for
Correct Answer: Option A — Mycodermaaceti
Detailed Academic Explanation:
Mycodermaaceti is the correct answer to “The term "mother of vinegar" is used for”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 9 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Antibiotic bleomycin is secreted by
Correct Answer: Option C — Streptomyces sp.
Detailed Academic Explanation:
Streptomyces sp. is the correct answer to “Antibiotic bleomycin is secreted by”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 10 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Phenyl acetic acid in penicillin fermentation is used as
Correct Answer: Option D — Precursor
Detailed Academic Explanation:
Precursor is the correct answer to “Phenyl acetic acid in penicillin fermentation is used as”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 11 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which enzymes are used for the production of high gravity beer?
Correct Answer: Option C — Neutral proteases
Detailed Academic Explanation:
Neutral proteases is the correct answer to “Which enzymes are used for the production of high gravity beer”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 12 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Alginate is obtained from
Correct Answer: Option A — Brown algae
Detailed Academic Explanation:
Brown algae is the correct answer to “Alginate is obtained from”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 13 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following has highest at alcohol constant?
Correct Answer: Option A — Gin
Detailed Academic Explanation:
Gin is the correct answer to “Which of the following has highest at alcohol constant”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 14 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
What is ale?
Correct Answer: Option B — Type of beer
Detailed Academic Explanation:
Type of beer is the correct answer to “What is ale”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 15 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Saccharomyces cerevisiae is employed for the production of
Correct Answer: Option B — Beer
Detailed Academic Explanation:
Beer is the correct answer to “Saccharomyces cerevisiae is employed for the production of”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 16 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The least used heat transfer-design in bioreactor is
Correct Answer: Option D — External heat exchanger
Detailed Academic Explanation:
External heat exchanger is the correct answer to “The least used heat transfer-design in bioreactor is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 17 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which of the following microbes is used in the production of vinegar?
Correct Answer: Option A — Acetobacter aceti
Detailed Academic Explanation:
Acetobacter aceti is the correct answer to “Which of the following microbes is used in the production of vinegar”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 18 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Fumaric acid is produced with the help of
Correct Answer: Option A — Rhizopusnigricans
Detailed Academic Explanation:
Rhizopusnigricans is the correct answer to “Fumaric acid is produced with the help of”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 19 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
A group of antibiotics produced by a species of marine fungus is
Correct Answer: Option B — Cephalosporins
Detailed Academic Explanation:
Cephalosporins is the correct answer to “A group of antibiotics produced by a species of marine fungus is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 20 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Manufacture of alcoholic beverages such as beer from malted grains is called
Correct Answer: Option B — Brewing
Detailed Academic Explanation:
Brewing is the correct answer to “Manufacture of alcoholic beverages such as beer from malted grains is called”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 21 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In alcoholic fermentation, CO 2 is evolved during
Correct Answer: Option D — Both A and B
Detailed Academic Explanation:
Both A and B is the correct answer to “In alcoholic fermentation, CO 2 is evolved during”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 22 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
During alcohol production, higher concentration of ethanol causes
Correct Answer: Option A — Reduction of yeast growth rate
Detailed Academic Explanation:
Reduction of yeast growth rate is the correct answer to “During alcohol production, higher concentration of ethanol causes”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 23 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Industrial microbiological processes have been developed by using the strains of which of the following group(s) of microbes?
Correct Answer: Option D — All the above
Detailed Academic Explanation:
All the above is the correct answer to “Industrial microbiological processes have been developed by using the strains of which of the following group(s) of microbes”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 24 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Phosphatase test is used to indicate the proper pasteurization of
Correct Answer: Option C — Milk
Detailed Academic Explanation:
Milk is the correct answer to “Phosphatase test is used to indicate the proper pasteurization of”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 25 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The fermentable liquid for brewing is prepared by a process called
Correct Answer: Option A — Mashing
Detailed Academic Explanation:
Mashing is the correct answer to “The fermentable liquid for brewing is prepared by a process called”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 26 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The fastest route of NADH re-oxidation is
Correct Answer: Option C — Fermentation
Detailed Academic Explanation:
Fermentation is the correct answer to “The fastest route of NADH re-oxidation is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 27 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The most striking example of chemical transformation possible largely through microbes only is
Correct Answer: Option B — Steroid biotransformation
Detailed Academic Explanation:
Steroid biotransformation is the correct answer to “The most striking example of chemical transformation possible largely through microbes only is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 28 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The major drawback in using type Saccharomyces cerevisiae for producing ethanol from biomass hydrolysis is
Correct Answer: Option D — Non utilization of pentose sugars
Detailed Academic Explanation:
Non utilization of pentose sugars is the correct answer to “The major drawback in using type Saccharomyces cerevisiae for producing ethanol from biomass hydrolysis is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 29 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In a batch microbial fermentation process the dissolved oxygen concentration (DOC) remains almost zero during growth. Which of the following methods will you use for the estimation of oxygen?
Correct Answer: Option C — Oxygen balance method
Detailed Academic Explanation:
Oxygen balance method is the correct answer to “In a batch microbial fermentation process the dissolved oxygen concentration (DOC) remains almost zero during growth. Which of the following methods will you use for the estimation of oxygen”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 30 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Molasses is mainly comprised of
Correct Answer: Option A — Sucrose
Detailed Academic Explanation:
Sucrose is the correct answer to “Molasses is mainly comprised of”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 31 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
The fermentation of glucose by yeast normally yields
Correct Answer: Option B — Alcohol, CO2 and 2 ATPs
Detailed Academic Explanation:
Alcohol, CO2 and 2 ATPs is the correct answer to “The fermentation of glucose by yeast normally yields”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 32 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
In anaerobic lactic acid fermentation by bacteria, glucose is partially oxidised to pyruvate followed by reduction to lactate
Correct Answer: Option B — For cofactor balancing
Detailed Academic Explanation:
For cofactor balancing is the correct answer to “In anaerobic lactic acid fermentation by bacteria, glucose is partially oxidised to pyruvate followed by reduction to lactate”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 33 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
All fermentation processes require large quantities of water, except
Correct Answer: Option C — Solid substrate fermentation
Detailed Academic Explanation:
Solid substrate fermentation is the correct answer to “All fermentation processes require large quantities of water, except”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 34 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Which molecule is incorporated in fermentation medium as buffering agent to provide neutralization of acidic fermentation production?
Correct Answer: Option B — Calcium carbonate
Detailed Academic Explanation:
Calcium carbonate is the correct answer to “Which molecule is incorporated in fermentation medium as buffering agent to provide neutralization of acidic fermentation production”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 35 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Organic acid first produced through fermentation is
Correct Answer: Option B — Lactic acid
Detailed Academic Explanation:
Lactic acid is the correct answer to “Organic acid first produced through fermentation is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 36 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Clostridium tetanomorphum is known to produce
Correct Answer: Option B — Vitamin B
Detailed Academic Explanation:
Vitamin B is the correct answer to “Clostridium tetanomorphum is known to produce”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 37 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Rennet is used in
Correct Answer: Option C — Cheese manufacturing
Detailed Academic Explanation:
Cheese manufacturing is the correct answer to “Rennet is used in”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 38 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Agar - agar is a polymer of
Correct Answer: Option A — Galactose
Detailed Academic Explanation:
Galactose is the correct answer to “Agar - agar is a polymer of”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 39 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Enzyme immobilization is
Correct Answer: Option C — Changing a soluble enzyme into insoluble state
Detailed Academic Explanation:
Changing a soluble enzyme into insoluble state is the correct answer to “Enzyme immobilization is”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
Question 40 of 40
★ PPSC
★ FPSC
★ PPSC
★ FPSC
Curacin - A is a potent anti-tumour agent obtained from a marine
Correct Answer: Option C — Aspergillus
Detailed Academic Explanation:
Aspergillus is the correct answer to “Curacin - A is a potent anti-tumour agent obtained from a marine”. This question is standard in competitive examination syllabi for Industrial Biotechnology.
💡Key Conceptual Anchor:Industrial Biotechnology
✓Link copied to clipboard
Continue Your Practice
Analytical Tools In Biotechnology — Part 1
Master the next curriculum module with 40 exam-standard MCQs.
💡Examiner's Advisory for Biotechnology Engineering
In competitive commission exams (FPSC, PPSC, KPPSC, SPSC, CSS, PMS), questions are frequently phrased with distractor options designed to catch rote learners. Whenever you answer an MCQ, read the Detailed Academic Explanation and Conceptual Anchor to understand why the remaining options are incorrect.