Bioprocess Technology - Questions and Answers for Competitive Exams | GkSeries

13. Culture containing more than one kind of microorganism is called _______culture.

• [A] synchronous
• [B] pure
• [C] auxenic
• [D] continuous

Answer: Option [C]

14. Gas transfer calculations are often based on_____________ .

• [A] one-film theory.
• [B] three- film theory.
• [C] two-film theory.
• [D] four-film theory

Answer: Option [C]

15. Which organism needs a lower concentration of oxygen in their environment for growth?

• [A] Anaerobe
• [B] Aerobe
• [C] Microaerophilic
• [D] Macroaerophilic

Answer: Option [C]

16. The growth curve obtained for a medium containing two carbon sources is called ____________growth curve.

• [A] diauxic
• [B] continuous
• [C] batch
• [D] synchronous

Answer: Option [A]

17. The organism that catalyses acetone-butanol fermentation is ________.

• [A] Acetobacter aceti
• [B] Penicillium chrysogenum
• [C] Citrobacter sp
• [D] Clostridium acetobutylicum.

Answer: Option [D]

18. Which phase of bacterial growth represent the time of adaptation?

• [A] Lag
• [B] Log
• [C] Stationary
• [D] Death

Answer: Option [A]

19. In ___________ phase, the secondary metabolites are synthesized.

• [A] exponential
• [B] acceleration
• [C] idio
• [D] death

Answer: Option [C]

20. Which among the following detergent is used for cell disruption?

• [A] Sodium lauryl sulfate
• [B] SDS
• [C] Triton X-100
• [D] All the above.

Answer: Option [D]

21. A continuous culture in which growth rate is limited by the rate of nutrient supply is called ______

• [A] turbidostat
• [B] chemostat
• [C] autostat
• [D] none of the above

Answer: Option [B]

22. The transfer of genetic information by direct cell to cell contact is _____

• [A] conjugation
• [B] transformation
• [C] transduction
• [D] transfection

Answer: Option [A]

23. Which organism can tolerate one environmental condition but still live in another?

• [A] Aerobes
• [B] Anaerobes
• [C] Facultative
• [D] Endospore producing microbes.

Answer: Option [C]

24. Which among the following represent aerobic process?

• [A] Trickling filters.
• [B] Rotating disc contactors.
• [C] Rotating drums.
• [D] All the above.

Answer: Option [D]