XII: Chapter 10- Microbes in human welfare

Question 1

Toddy a traditional drink of some parts of southern india is made by fermenting sap from

Answer 1

Palm

Question 2

The holes in swiss cheese are due to the production of large amount of carbon dioxide by a bacterium named

Answer 2

Propionibacterium sharmanii

Question 3

Are wine and beer distilled?

Answer 3

No

Question 4

Are whisky, brandy and rum distilled?

Answer 4

Yes

Question 5

Alexander Fleming discovered penicillin while working with which bacteria?

Answer 5

Staphylococcus

Question 6

Which enzymes are useful for removing oily stains from clothes?

Answer 6

Lipases

Question 7

What is used as a clot buster for removing clots from the blood vessels of patients who have undergone myocardial infarction leading to heart attack?

Answer 7

Streptokinase

Question 8

Cyclosporin A is produced by which organism? What is its function?

Answer 8

Trichoderma polysporum

Function- immunosuppressive agent

Question 9

Statins are produced by which organism? What is its function?

Answer 9

Monascus purpureus

Blood chloesterol lowering agent

Question 10

Are wine and beer prepared by distillation?

Answer 10

No

Question 11

Are brandy, whisky and rum prepared by distillation?

Answer 11

Yes

Question 12

Alexander Fleming discovered Penicillin while working on which bacteria?

Answer 12

Staphylococcus

Question 13

Which enzyme can be used to remove oil stains from fabric?

Answer 13

Lipases

Question 14

Clot buster used by myocardial infarction patients is obtained from

Answer 14

Streptokinase is obtained from Streptococcus

Question 15

Statins are used for which purposes? Which organsims are they obtained from?

Answer 15

Monascus purpureus

Cholesterol lowering agent

Question 16

Cyclosporin A is used for which purposes? Which organsims is it obtained from?

Answer 16

Trichoderma polysporum

Immunosuppressive agents

Question 17

Which gases are produced by anaerobic bacteria in sewage treatment plant?

Answer 17

Hydrogen sulphide, carbon dioxide and methaane

Question 18

How deep is the concrete tank used in biogas plant?

Answer 18

10-15 feet deep

Question 19

Ladybirds and dragonflies can be used to get rid of which insect pests?

Answer 19

Aphids and mosquitoes

Question 20

Name a free living fungus species very common in root ecosystem and can act as an effective biocontrol agent?

Answer 20

Trichoderma

Question 21

The biogas plant was developed in India by

Answer 21

Indian Agricultural Research Institute and Khadi & Village Industries Commission.

Question 22

Can nicotine be used as an insecticide?

Answer 22

Yes

Question 23

Rotenone is a natural insecticide obtained from

Answer 23

Derris elliptica

Question 24

Azadirachtin is a natural insecticide obtained from

Answer 24

Neem