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Microbes and Humans

Total questions: 10

Worksheet time: 17mins

Name
Class
Date
1.

In today's health scenario, more and more people are reporting heart ailments and presence of clots in them. Which of the following will be in greatest demand?

a)

streptomycin

b)

penicillin

c)

streptokinase

d)

penicillium

2.

In Tom and Jerry cartoons, the swiss cheese with large holes is a familiar sight. Name the organism responsible for this cheese.

a)

Propionibacterium

b)

Lactobacillus

c)

Acetobacter

d)

Saccharomyces

3.

Identify a non-biofertilizer.

a)

Mycorrhiza

b)

Rhizobium

c)

Bacillus cereus

d)

Cyanobacterium

4.

In the fast-paced world with rapid industrialisation, raw materials for industries are obtained from varied sources. Read the statements below and identify the correct ones.

A. Microbes are not ideal for biotech industries.

B. Microbes produce chemicals during their metabolism

C. Microbes can be grown on artificial media.

D. Microbes can live in highly acidic environments.

a)

A, B, C

b)

B, C, D

c)

A, C, D

d)

A, B, D

5.

Secondary sewage treatment does not .............

a)

separate wastes based on size

b)

increase in BOD levels

c)

use aerobic bacteria

d)

remove turbidity from water

6.

Radhika was hospitalized with symptoms like fever, headache, muscle pain, general weakness and swollen lymph glands in the groin, neck and arm pits. Radhika's conditions worsened with symptoms like internal bleeding and skin turning black. The blood tests showed negative for protozoan and helminth. The doctor enquired about the family's living conditions and confirmed rodent infestation.

6.

What could be the possible disease the doctor is looking at. Also mention the pathogen.

4 lines
7.

Assertion: Monascus purpureus is used in lowering cholesterol level.

Reason: It produces a chemical called statin.

a)

A is true and R is false

b)

A is false and R is true

c)

A and R are true

d)

A and R are false

8.

Krishna's father was a severe alcoholic and was diagnosed with liver cirrhosis. He was suggested a liver transplant. After the transplant, he was prescribed a host of drugs including an immunosuppressant.

8.

Name the drug that could be a part of his prescription and also the source.

4 lines
9.

Probiotics are

a)

gut-friendly live bacteria

b)

acid-balancing alternated bacteria

c)

beneficial number of dead bacteria

d)

Gram - attenuated bacteria

10.

Name the pathogen that is detected through this technique

4 lines