Microorganisms Friend And Foe Test

Result

Microorganisms Friend And Foe Test - 22

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Weekly Quiz Competition

Question 1
1 / -0

The process of conversion of sugar into alcohol is called as

A
Nitrogen fixation

B
Moulding

C
Fermentation

D
Infection

Solution

Fermentation is the process which is carried by anaerobic respiration of microorganism which leads to the production of lactic acid or alcohol with the release of carbon dioxide. Yeasts can convert sugars to alcohol and carbon dioxide by fermentation.
So, the correct answer is option C.
Question 2
1 / -0

A chemical substance produced by a microorganism for inhibiting the growth of others is known as:

A
Antibiotic

B
Antibody

C
Antigen

D
Aflatoxin
Solution
Antibiotic is a chemical secreted by microorganisms (bacteria or fungi) that kills or hinders the growth of some kinds of bacteria.
For example:
Penicillins are a group of broadspectrum antibiotics originally obtained from Penicillium moulds.
Streptomycin is an antibiotic produced by gram-negative bacteria to treat several diseases.
Question 3
1 / -0

Which of the following diseases spreads through mosquitoes?

A
Malaria

B
Blood cancer

C
Sickle cell anaemia

D
lnfluenza

Solution

Malaria is a mosquito-borne infectious disease of humans and other animals caused by parasitic protozoans belonging to the genus Plasmodium. The disease is transmitted most commonly by an infected female anopheles mosquito. The mosquito bite introduces the parasites from the mosquito's saliva into a person's blood. The parasites travel to the liver where they get mature and reproduce.
So, the correct answer is option A.
Question 4
1 / -0

Alcohol is produced during the process of:

A
Aerobic respiration

B
Combustion

C
Fermentation

D
Krebs cycle

Solution

Alcohol is commercially produced by the process called fermentation. In alcoholic fermentation, pyruvate formed during glycolysis is converted to ethanol and carbon dioxide.
Glucose $$\rightarrow$$ Pyruvate (in absence of oxygen) $$\rightarrow$$ Ethanol + CO$$_2$$ + Energy
So, the correct answer is option C.
Question 5
1 / -0

A communicable disease is generally caused by

A
Metabolic disorder

B
Hormonal imbalance

C
Allergy

D
Pathogen

Solution

Infectious disease can be easily transmitted from one person to the other. These are caused by pathogenic microorganisms, such as bacteria, viruses, parasites or fungi.
So, the correct answer is option D.
Question 6
1 / -0

Oil and vinegar are used for the preservation of:

A
Vegetables

B
Fish

C
Meat

D
All of the above

Solution

Vegetables, fruits, fish, and meat are often preserved with oil and vinegar. It prevents the growth of bacteria as they cannot live in such an environment.
Question 7
1 / -0

Cholera

A
Is a non-communicable disease

B
Spreads through food and water

C
Spreads through air

D
Spreads through mosquitoes

Solution

Cholera is an infectious disease that causes severe watery diarrhea, which can lead to dehydration and even death if untreated. It is caused by eating food or drinking water contaminated with a bacterium called Vibrio cholerae.
So, the correct answer is option B.
Question 8
1 / -0

Why oil and vinegar is used as preservative?

A
Because viruses can't live in such environment

B
It inhibits the growth of algae

C
Both a and b

D
Inhibits the growth of bacteria

Solution

Oil and vinegar are used as a preservative because it inhibits the growth of bacteria.
Question 9
1 / -0

Droplet infection is a type of

A
Direct transmission

B
Indirect transmission

C
Vector transmission

D
All of the above

Solution

Droplet infection is the infection which is transmitted by the oral discharge during coughing and sneezing. It is a direct method of infection where the pathogens are easily transmitted from the carrier to the healthy host.
Therefore, the correct answer is option A.
Question 10
1 / -0

Which of the following diseases is not caused by bacteria?

A
Typhoid

B
Anthrax

C
Malaria

D
Tuberculosis

Solution

Typhoid is a bacterial disease caused by Salmonella typhi.
Anthrax is caused by the bacterium, Bacillus anthracis.
Tuberculosis is a bacterial disease caused by Mycobacterium tuberculosis.
Malaria is a protozoan disease. It is caused due to a parasite from the Plasmodium family. These parasites are transmitted by the Anopheles mosquito.

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Microorganisms Friend And Foe Test - 22

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Microorganisms Friend And Foe Test - 22

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Question 1

Nitrogen fixation

Moulding

Fermentation

Infection

Solution

Question 2

Antibiotic

Antibody

Antigen

Aflatoxin

Solution

Question 3

Malaria

Blood cancer

Sickle cell anaemia

lnfluenza

Solution

Question 4

Aerobic respiration

Combustion

Fermentation

Krebs cycle

Solution

Question 5

Metabolic disorder

Hormonal imbalance

Allergy

Pathogen

Solution

Question 6

Vegetables

Fish

Meat

All of the above

Solution

Question 7

Is a non-communicable disease

Spreads through food and water

Spreads through air

Spreads through mosquitoes

Solution

Question 8

Because viruses can't live in such environment

It inhibits the growth of algae

Both a and b

Inhibits the growth of bacteria

Solution

Question 9

Direct transmission

Indirect transmission

Vector transmission

All of the above

Solution

Question 10

Typhoid

Anthrax

Malaria

Tuberculosis

Solution

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