Microbes in Human Welfare Test

Question 1
4 / -1

Microbes are present in

A
soil

B
thermal vents

C
polluted water

D
all of the above

Question 2
4 / -1

Which of the following microbes is a proteinacious infectious agent?

A
Fungi

B
Prions

C
Bacteria

D
Protozoa

Question 3
4 / -1

Study the following statements regarding lactic acid bacteria (LAB) which are used to convert milk into curd.
(i) They produce adds that coagulate and partially digest the milk proteins.
(ii) A small amount of curd added to the fresh milk as an inoculum contains millions of LAB, which at suitable temperature, multiply and convert milk into curd.
(iii) Conversion of milk into curd improves its nutritional quality by increasing vitamin B₁₂.
(iv) LAB may result in acidity in the stomach of human beings.
Which of the given statements are correct?

A
(i) and (ii)

B
(ii) and (iii)

C
(i), (ii) and (iii)

D
(i), (ii), (iii) and (iv)

Question 4
4 / -1

Which one of the following combinations of organisms are responsible for the formation and flavour of yoghurt?

A
Lactobacillus bulgaricus and streptococcus thermophilus

B
Rhizobium melioti and Aztobactor

C
Bacillus subtillis and Escherichia coli

D
Bacillus megathermus and Xanthomonas species

Question 5
4 / -1

Which of the following food items is produced by the fermenting activity of microbes?
(A) Idli
(B) Dosa
(C) Toddy
(D) Cheese

A
A and C

B
C and D

C
A, B and C

D
A, B, C and D

Submit Test

Microbes in Hum...

Question 1

soil

thermal vents

polluted water

all of the above

Question 2

Fungi

Prions

Bacteria

Protozoa

Question 3

(i) and (ii)

(ii) and (iii)

(i), (ii) and (iii)

(i), (ii), (iii) and (iv)

Question 4

Lactobacillus bulgaricus and streptococcus thermophilus

Rhizobium melioti and Aztobactor

Bacillus subtillis and Escherichia coli

Bacillus megathermus and Xanthomonas species

Question 5

A and C

C and D

A, B and C

A, B, C and D

User

Question Analysis

Microbes in Hum...

Question 1

soil

thermal vents

polluted water

all of the above

Question 2

Fungi

Prions

Bacteria

Protozoa

Question 3

(i) and (ii)

(ii) and (iii)

(i), (ii) and (iii)

(i), (ii), (iii) and (iv)

Question 4

Lactobacillus bulgaricus and streptococcus thermophilus

Rhizobium melioti and Aztobactor

Bacillus subtillis and Escherichia coli

Bacillus megathermus and Xanthomonas species

Question 5

A and C

C and D

A, B and C

A, B, C and D

User

Question Analysis

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