Microbial Biotechnology MCQ Questions & Answers | Biotechnology Page-3 section-1

21.
Identify the following antibiotics with their modes of action.

Group I (Antibiotic) Group II (Mode of action)

P. Ampicillin 1. Inhibition of protein synthesis

Q. Tetracycline 2. Inhibition of cell wall synthesis

R. Nystatin 3. Damage to cytoplasmic membrane

S. Anthramycin 4. Damage to DNA structure

A. P-1, Q-2, R-4, S-3

B. P-2, Q-1, R-3, S-4

C. P-1, Q-2, R-3, S-4

D. P-3, Q-4, R-2, S-1

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22.
Match the products in Group I with the microbial cultures in Group II used with their industrial production.

Group I Group II

P. Gluconic acid 1. Leuconostoc mesenteroides

Q. L-Lysine 2. Aspergillus niger

R. Dextran 3. Brevibacterium flavum

S. Cellulase 4. Trichoderma reesei

A. P-2, Q-1, R-3, S-4

B. P-1, Q-3, R-4, S-2

C. P-2, Q-3, R-1, S-4

D. P-3, Q-2, R-4, S-1

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23.
A biological process is involved in the . . . . . . . . treatment of industrial effluent.

A. Primary

B. Secondary

C. Tertiary

D. Quaternary

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24.
Which one of the following bioreactor configurations is the basis for a trickling biological filter?

A. Stirred tank

B. Packed bed

C. Air lift

D. Fluidized bed

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25.
Ethanol concentration is lowest in

A. Wine

B. Beer

C. Brandy

D. Rum

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26.
The selection of the appropriate purification method in the product recovery after microbial fermentation depends on the

A. Nature and the stability of the end products produced

B. Type of the side products present

C. Degree of purification required

D. All of the above

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27.
Match items in Group I with correct examples from those in Group II.

Group I Group II

P. Catabolic product 1. Griseofulvin

Q. Bioconversion 2. Baker's yeast

R. Biosynthetic product 3. 6-Aminopenicillanic acid

S. Cell mass 4. Ethanol

A. P-4, Q-3, R-2, S-1

B. P-3, Q-4, R-1, S-2

C. P-4, Q-3, R-1, S-2

D. P-1, Q-4, R-3, S-2

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28.
Match the items in Group I with the terms given in Group II.

Group I Group II

P. Lactobacillus and Bifidobacteria 1. Prebiotics

Q. Polychlorobenzenes (PCBs) 2. Probiotics

R. Fructo-oligosaccharides 3. Antibiotics

S. β-Lactams 4. Xenobiotics

A. P-2, Q-4, R-1, S-3

B. P-3, Q-4, R-1, S-2

C. P-4, Q-1, R-2, S-3

D. P-1, Q-3, R-4, S-2

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29.
Enzyme papain is used with success to

A. Increase meat produ

B. Leaven bread

C. Ripen papaya fruit

D. Tenderize meat

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30.
Which of the following is not true of aerobic digestion?

A. It generates most sludge

B. It generally incurs higher running cost

C. It may generate a usable fuel

D. It requires a shorter residence time

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Group I (Antibiotic)	Group II (Mode of action)
P. Ampicillin	1. Inhibition of protein synthesis
Q. Tetracycline	2. Inhibition of cell wall synthesis
R. Nystatin	3. Damage to cytoplasmic membrane
S. Anthramycin	4. Damage to DNA structure

Group I	Group II
P. Gluconic acid	1. Leuconostoc mesenteroides
Q. L-Lysine	2. Aspergillus niger
R. Dextran	3. Brevibacterium flavum
S. Cellulase	4. Trichoderma reesei

Group I	Group II
P. Catabolic product	1. Griseofulvin
Q. Bioconversion	2. Baker's yeast
R. Biosynthetic product	3. 6-Aminopenicillanic acid
S. Cell mass	4. Ethanol

Group I	Group II
P. Lactobacillus and Bifidobacteria	1. Prebiotics
Q. Polychlorobenzenes (PCBs)	2. Probiotics
R. Fructo-oligosaccharides	3. Antibiotics
S. β-Lactams	4. Xenobiotics

Microbial Biotechnology MCQ Questions & Answers | Biotechnology

Answer & Solution

22. Match the products in Group I with the microbial cultures in Group II used with their industrial production. Group I Group II P. Gluconic acid 1. Leuconostoc mesenteroides Q. L-Lysine 2. Aspergillus niger R. Dextran 3. Brevibacterium flavum S. Cellulase 4. Trichoderma reesei

Answer & Solution

23. A biological process is involved in the . . . . . . . . treatment of industrial effluent.

Answer & Solution

24. Which one of the following bioreactor configurations is the basis for a trickling biological filter?

Answer & Solution

25. Ethanol concentration is lowest in

Answer & Solution

26. The selection of the appropriate purification method in the product recovery after microbial fermentation depends on the

Answer & Solution

27. Match items in Group I with correct examples from those in Group II. Group I Group II P. Catabolic product 1. Griseofulvin Q. Bioconversion 2. Baker's yeast R. Biosynthetic product 3. 6-Aminopenicillanic acid S. Cell mass 4. Ethanol

Answer & Solution

28. Match the items in Group I with the terms given in Group II. Group I Group II P. Lactobacillus and Bifidobacteria 1. Prebiotics Q. Polychlorobenzenes (PCBs) 2. Probiotics R. Fructo-oligosaccharides 3. Antibiotics S. β-Lactams 4. Xenobiotics

Answer & Solution

29. Enzyme papain is used with success to

Answer & Solution

30. Which of the following is not true of aerobic digestion?

Answer & Solution

22.
Match the products in Group I with the microbial cultures in Group II used with their industrial production.

Group I Group II

P. Gluconic acid 1. Leuconostoc mesenteroides

Q. L-Lysine 2. Aspergillus niger

R. Dextran 3. Brevibacterium flavum

S. Cellulase 4. Trichoderma reesei

23.
A biological process is involved in the . . . . . . . . treatment of industrial effluent.

24.
Which one of the following bioreactor configurations is the basis for a trickling biological filter?

25.
Ethanol concentration is lowest in

26.
The selection of the appropriate purification method in the product recovery after microbial fermentation depends on the

27.
Match items in Group I with correct examples from those in Group II.

Group I Group II

P. Catabolic product 1. Griseofulvin

Q. Bioconversion 2. Baker's yeast

R. Biosynthetic product 3. 6-Aminopenicillanic acid

S. Cell mass 4. Ethanol

28.
Match the items in Group I with the terms given in Group II.

Group I Group II

P. Lactobacillus and Bifidobacteria 1. Prebiotics

Q. Polychlorobenzenes (PCBs) 2. Probiotics

R. Fructo-oligosaccharides 3. Antibiotics

S. β-Lactams 4. Xenobiotics

29.
Enzyme papain is used with success to

30.
Which of the following is not true of aerobic digestion?