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Industrial Application of Microbes (GATE - XL)

Questions on industrial applications of microorganisms including enzyme production, antibiotic manufacturing, bioleaching, food fermentation, and biological pesticides for GATE XL exam preparation.

9 Questions Published
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Questions

Question 1 Multiple Choice (Single Answer)

Streptokinase (SK) is an enzyme secreted by ________ that can bind and activate human plasminogen.

  1. Streptococcus equisimilis
  2. Streptococcus thermophilus
  3. Serratia marcescens
  4. Lactobacillus fermentum
  5. Pseudomonas fluorescens
Question 2 Multiple Choice (Single Answer)

Microbial hydantoinase (HYD) is an industrial enzyme used for the commercial production of amino acids. It is obtained from

  1. Flavobacterium ammoniagenes
  2. Bacillus coagulans
  3. Penicillin decumbens
  4. Corynebacterium glutamicum
  5. Methylophylus methylotrophus
Question 3 Multiple Choice (Single Answer)

Which of the following bacteria is used as biological pesticide?

  1. Thiobacillus ferrooxidans
  2. Xanthomonas campestris
  3. Lactobacillus delbrueckii
  4. Acetrobacter aceti
  5. Bacillus thuringiensis
Question 4 Multiple Choice (Single Answer)

Which of the following microbes are used in yogurt production?

  1. Streptococcus thermophilus
  2. Lactobacillus delbrueckii
  3. Acetobacter aceti
  4. Gluconobacter oxydans
  1. 1 and 2
  2. 1 and 3
  3. 1, 2 and 4
  4. 2 and 3
  5. 2 and 4
Question 5 Multiple Choice (Single Answer)

Aspergillus niger is cultured for the industrial production of

  1. 2-aminopentanedioic acid
  2. 3-carboxy-3-hydroxypentane-1,5-dioic acid
  3. 2-hydroxypropanoic acid
  4. dextronic acid
  1. 1 and 2
  2. 1 and 3
  3. 2 and 3
  4. 2 and 4
  5. 2, 3 and 4
Question 6 Multiple Choice (Single Answer)

Match the columns:

 
Commercial antibiotics Producing microorganisms
P. Chloramphenicol 1. Micromonospora purpurea
Q. Streptomycin 2. Streptomyces aureofaciens
R. Tetracycline 3. Streptomyces griseus
S. Gentamicin 4. Streptomyces venezuelae
  1. P - 1, Q - 2, R - 3, S - 4
  2. P - 1, Q - 2, R - 4, S - 3
  3. P - 2, Q - 1, R - 3, S - 4
  4. P - 2, Q - 3, R - 4, S - 1
  5. P - 4, Q - 3, R - 2, S - 1
Question 7 Multiple Choice (Single Answer)

Match the columns:

 
Antibiotic Source
A. Actinomycin 1. Streptomyces antibioticus
B. Chloromycin 2. Streptomyces venezuelae
C.Leucomycin 3. Streptomyces kanamyceticus
D. Tetramycin 4. Streptomyces rimosus
  1. A - 4, B - 3, C - 2, D - 1
  2. A - 3, B - 1, C - 4, D - 2
  3. A - 2, B - 1, C - 3, D - 4
  4. A - 1, B - 2, C - 4, D - 3
  5. A - 1, B - 2, C - 3, D - 4
Question 8 Multiple Choice (Single Answer)

Match the columns:

 
Microbe its application
P. Thiobacterium ferrooxidans 1. Decomposition of DDT
Q. Aerobacter aerogenes 2. Biological leaching of uranium ores
R. Methylophilus methylotrophus 3. Curing of tea leaves
S. Mycococcus condisans 4. Production of single cell proteins
  1. P - 1, Q - 2, R - 3, S - 4
  2. P - 2, Q - 1, R - 4, S - 3
  3. P - 3, Q - 2, R - 1, S - 4
  4. P - 4, Q - 3, R - 2, S - 1
  5. P - 1, Q - 2, R - 4, S - 3
Question 9 Multiple Choice (Single Answer)

Match the columns:

 
Commercial enzymes Producing microorganisms
P. ADH 1. Aspergillus niger
Q. SEH 2. Pseudomonas fluorescens
R. GOx 3. Saccharomyces cerevisae
S. UO 4. Arthrobacter globiformis
  1. P – 1, Q – 2, R – 3, S – 4
  2. P – 1, Q – 3, R – 2, S – 4
  3. P – 3, Q – 2, R – 1, S – 4
  4. P – 2, Q – 3, R – 4, S – 1
  5. P – 4, Q – 3, R – 2, S – 1
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