Microbes in Human Welfare Chapter-Wise Test 12

Correct answer Carries: 4.

Wrong Answer Carries: -1.

Which of the following is NOT a function of microbes in human welfare?

Production of antibiotics
Industrial production of organic acids
Causing pollution in water bodies
Decomposition of organic waste
3

Microbes play a crucial role in human welfare, but they do not directly cause pollution. Instead, they help in biodegradation and sewage treatment.

Which of the following enzymes is used for dissolving blood clots in heart patients?

Lipase
Streptokinase
Pectinase
Amylase
2

Streptokinase, produced by Streptococcus bacteria, is used to dissolve blood clots in patients suffering from heart attacks.

Which of the following microbes is used for bioremediation of oil spills?

Pseudomonas
Saccharomyces cerevisiae
Clostridium
Lactobacillus
1

Pseudomonas species are capable of degrading petroleum and are used in bioremediation of oil spills.

Which bacteria play a major role in reducing the Biochemical Oxygen Demand (BOD) of sewage?

Aerobic bacteria
Anaerobic bacteria
Methanogens
Cyanobacteria
1

Aerobic bacteria in sewage treatment plants degrade organic matter, reducing BOD levels.

Which of the following is a fungal biocontrol agent used against plant pathogens?

Bacillus thuringiensis
Trichoderma
Rhizobium
Pseudomonas
2

Trichoderma is a fungal biocontrol agent used to control soil-borne plant pathogens.

Which of the following microbes is correctly matched with its industrial use?

Rhizopus - Production of citric acid
Saccharomyces cerevisiae - Bread making
Bacillus thuringiensis - Ethanol production
Lactobacillus - Production of antibiotics
2

Saccharomyces cerevisiae (yeast) is used in bread-making to ferment sugars and produce carbon dioxide.

Which of the following microbes is used in the fermentation of bamboo shoots?

Lactobacillus
Saccharomyces cerevisiae
Clostridium
Pseudomonas
1

Lactobacillus is used in the fermentation of bamboo shoots, improving their digestibility.

Which of the following microbes is commonly used for Single Cell Protein (SCP) production?

Spirulina
Methanobacterium
Pseudomonas
Clostridium
1

Spirulina, a cyanobacterium, is used for SCP production due to its high protein content.

Which enzyme is used in the dairy industry to produce cheese?

Cellulase
Rennin
Amylase
Lipase
2

Rennin (chymosin) is used in the dairy industry to coagulate milk proteins and produce cheese.

Which of the following microbes helps in the fermentation of soybeans to make traditional foods?

Lactobacillus
Saccharomyces
Rhizopus
Clostridium
3

Rhizopus is involved in the fermentation of soybeans to produce traditional foods like tempeh.

Performance Summary

Score:

Category Details
Total Attempts:
Total Skipped:
Total Wrong Answers:
Total Correct Answers:
Time Taken:
Average Time Taken per Question:
Accuracy:
0