Biochemical Engineering

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Q. What is the primary function of enzymes in the human body?
  • A. To provide energy
  • B. To catalyze biochemical reactions
  • C. To transport oxygen
  • D. To store nutrients
Q. What is the primary goal of aeration in respiratory therapy?
  • A. To increase blood pressure
  • B. To enhance oxygen delivery
  • C. To reduce heart rate
  • D. To improve digestion
Q. What is the primary goal of downstream processing in biopharmaceutical production?
  • A. To enhance cell growth
  • B. To purify the product
  • C. To increase fermentation yield
  • D. To reduce production costs
Q. What is the primary purpose of a fermentation reactor?
  • A. To produce antibiotics
  • B. To synthesize proteins
  • C. To facilitate microbial growth
  • D. To extract enzymes
Q. What is the primary purpose of agitation in a clinical setting?
  • A. To increase patient comfort
  • B. To enhance drug solubility
  • C. To reduce patient anxiety
  • D. To improve blood circulation
Q. What is the primary purpose of bioreactors in biochemical engineering?
  • A. To purify proteins
  • B. To cultivate microorganisms
  • C. To synthesize chemical compounds
  • D. To analyze genetic material
Q. What is the primary purpose of chlorination in water treatment?
  • A. To remove heavy metals
  • B. To kill bacteria and viruses
  • C. To improve taste and odor
  • D. To filter out sediments
Q. What is the primary purpose of immobilizing enzymes?
  • A. To increase their solubility
  • B. To enhance their stability and reusability
  • C. To decrease their activity
  • D. To change their substrate specificity
Q. What is the primary purpose of sterilization in a medical context?
  • A. To reduce the risk of infection
  • B. To enhance drug absorption
  • C. To improve patient comfort
  • D. To increase surgical efficiency
Q. What is the primary substrate used in fermentation processes?
  • A. Glucose
  • B. Lactate
  • C. Ethanol
  • D. Acetate
Q. What is the purpose of biological indicators in sterilization processes?
  • A. To measure temperature
  • B. To confirm sterility
  • C. To assess chemical concentration
  • D. To monitor humidity levels
Q. What is the purpose of buffer exchange in downstream processing?
  • A. To increase product yield
  • B. To remove contaminants
  • C. To adjust pH and ionic strength
  • D. To enhance solubility
Q. What is the purpose of downstream processing in biochemical engineering?
  • A. To enhance microbial growth
  • B. To extract and purify products
  • C. To modify genetic material
  • D. To analyze metabolic pathways
Q. What is the purpose of lyophilization in downstream processing?
  • A. To purify proteins
  • B. To remove water from the product
  • C. To enhance product activity
  • D. To increase product solubility
Q. What is the purpose of sedimentation in water treatment?
  • A. To kill bacteria
  • B. To remove dissolved gases
  • C. To allow heavier particles to settle
  • D. To add minerals
Q. What is the recommended agitation technique for mixing blood products?
  • A. Vigorous shaking
  • B. Gentle inversion
  • C. Rapid spinning
  • D. Continuous stirring
Q. What is the role of a bioreactor's agitator?
  • A. To cool the reactor
  • B. To mix the contents
  • C. To sterilize the medium
  • D. To measure pH
Q. What is the role of a carrier in enzyme immobilization?
  • A. To increase enzyme activity
  • B. To provide a surface for enzyme attachment
  • C. To decrease reaction time
  • D. To enhance substrate binding
Q. What is the role of a fermenter in biochemical engineering?
  • A. To separate products from cells
  • B. To provide a controlled environment for fermentation
  • C. To analyze metabolic pathways
  • D. To synthesize DNA
Q. What is the role of activated carbon in water treatment?
  • A. To add minerals
  • B. To remove chlorine
  • C. To adsorb organic compounds
  • D. To increase pH
Q. What is the role of chromatography in downstream processing?
  • A. To kill microorganisms
  • B. To concentrate the product
  • C. To separate and purify biomolecules
  • D. To enhance product stability
Q. What is the role of coenzymes in enzymatic reactions?
  • A. To inhibit enzyme activity
  • B. To provide additional energy
  • C. To assist in substrate binding
  • D. To stabilize the enzyme structure
Q. What is the role of cofactors in enzyme activity?
  • A. To provide energy for the reaction
  • B. To stabilize the enzyme structure
  • C. To assist in the catalytic process
  • D. To act as a substrate
Q. What is the role of enzymes in fermentation?
  • A. Increase temperature
  • B. Catalyze reactions
  • C. Consume substrates
  • D. Produce waste products
Q. What is the role of ethylene oxide in sterilization?
  • A. It is a disinfectant
  • B. It is a sterilizing gas
  • C. It is a cleaning agent
  • D. It is a preservative
Q. What is the significance of metabolic engineering in biochemical engineering?
  • A. To enhance the efficiency of metabolic pathways
  • B. To create new microbial strains
  • C. To improve product yield
  • D. All of the above
Q. What is the significance of the 'maximum specific growth rate' in fermentation?
  • A. Indicates the fastest growth rate
  • B. Determines substrate concentration
  • C. Measures product yield
  • D. Indicates fermentation duration
Q. What is the term for the flow of fluid in layers, with no disruption between them?
  • A. Turbulent flow
  • B. Laminar flow
  • C. Transitional flow
  • D. Creeping flow
Q. What is the term for the maximum rate of an enzyme-catalyzed reaction?
  • A. Vmax
  • B. Km
  • C. Turnover number
  • D. Michaelis constant
Q. What is the term for the region on the enzyme where the substrate binds?
  • A. Active site
  • B. Allosteric site
  • C. Binding site
  • D. Catalytic site
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