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Industrial Biotechnology: Microorganisms and Enzymes

Description: Test your knowledge on Industrial Biotechnology: Microorganisms and Enzymes.
Number of Questions: 15
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Tags: industrial biotechnology microorganisms enzymes biotechnology
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Which microorganism is commonly used in the production of ethanol through fermentation?

  1. Escherichia coli

  2. Saccharomyces cerevisiae

  3. Lactobacillus acidophilus

  4. Pseudomonas aeruginosa


Correct Option: B
Explanation:

Saccharomyces cerevisiae, also known as brewer's yeast, is widely used in the fermentation of sugars to produce ethanol.

What is the primary role of enzymes in industrial biotechnology?

  1. Energy production

  2. Cell division

  3. Catalyzing biochemical reactions

  4. Protein synthesis


Correct Option: C
Explanation:

Enzymes act as catalysts, accelerating specific biochemical reactions in industrial processes.

Which enzyme is commonly employed in the production of cheese?

  1. Amylase

  2. Lipase

  3. Rennet

  4. Protease


Correct Option: C
Explanation:

Rennet, an enzyme derived from animal or microbial sources, is used to coagulate milk proteins during cheese production.

What is the main application of cellulases in industrial biotechnology?

  1. Biofuel production

  2. Food processing

  3. Detergent manufacturing

  4. Pharmaceutical production


Correct Option: A
Explanation:

Cellulases are primarily used in the breakdown of cellulose, a major component of plant biomass, for the production of biofuels.

Which microorganism is commonly used in the production of antibiotics?

  1. Penicillium chrysogenum

  2. Streptomyces griseus

  3. Bacillus subtilis

  4. Escherichia coli


Correct Option: A
Explanation:

Penicillium chrysogenum is known for producing penicillin, one of the first discovered antibiotics.

What is the primary application of pectinases in industrial biotechnology?

  1. Fruit juice clarification

  2. Textile processing

  3. Paper manufacturing

  4. Bioremediation


Correct Option: A
Explanation:

Pectinases are commonly used in the clarification of fruit juices by breaking down pectin, a natural component of plant cell walls.

Which enzyme is utilized in the production of high-fructose corn syrup?

  1. Glucose oxidase

  2. Xylanase

  3. Invertase

  4. Amylase


Correct Option:
Explanation:

Glucose isomerase is the enzyme responsible for converting glucose into fructose, resulting in high-fructose corn syrup.

What is the primary role of microorganisms in industrial biotechnology?

  1. Wastewater treatment

  2. Bioremediation

  3. Production of biofuels

  4. All of the above


Correct Option: D
Explanation:

Microorganisms play crucial roles in various industrial biotechnology applications, including wastewater treatment, bioremediation, and the production of biofuels.

Which enzyme is commonly used in the production of detergents?

  1. Protease

  2. Lipase

  3. Amylase

  4. Cellulase


Correct Option: A
Explanation:

Proteases are widely used in detergent formulations to break down protein-based stains.

What is the main application of laccases in industrial biotechnology?

  1. Textile dyeing

  2. Bioremediation

  3. Food processing

  4. Pulp and paper manufacturing


Correct Option: D
Explanation:

Laccases are primarily used in the pulp and paper industry to improve the brightness and strength of paper products.

Which microorganism is commonly used in the production of citric acid?

  1. Aspergillus niger

  2. Saccharomyces cerevisiae

  3. Lactobacillus acidophilus

  4. Escherichia coli


Correct Option: A
Explanation:

Aspergillus niger is widely used in the industrial production of citric acid through fermentation.

What is the primary role of enzymes in food processing?

  1. Enhancing flavor

  2. Improving texture

  3. Preserving food

  4. All of the above


Correct Option: D
Explanation:

Enzymes play various roles in food processing, including enhancing flavor, improving texture, and preserving food.

Which enzyme is commonly used in the production of bioethanol from starch?

  1. Amylase

  2. Glucoamylase

  3. Cellulase

  4. Xylanase


Correct Option: A
Explanation:

Amylase is the primary enzyme responsible for breaking down starch into smaller sugar molecules, which can then be fermented to produce bioethanol.

What is the main application of xylanases in industrial biotechnology?

  1. Biofuel production

  2. Textile processing

  3. Paper manufacturing

  4. Animal feed production


Correct Option: C
Explanation:

Xylanases are primarily used in the paper industry to improve the brightness and strength of paper products.

Which microorganism is commonly used in the production of yogurt?

  1. Lactobacillus bulgaricus

  2. Streptococcus thermophilus

  3. Saccharomyces cerevisiae

  4. Escherichia coli


Correct Option:
Explanation:

Lactobacillus bulgaricus and Streptococcus thermophilus are the primary microorganisms used in the fermentation of milk to produce yogurt.

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