SaraNextGen Study App [2022-23]
Last Updated On 23-10-2022 - By Sara

Read the following statements regarding archaebacteria and select the correct option

I. Archaebacteria differs from other bacteria in having different cell wall structure

II. Their cell wall is made up of cellulose and contains high amount of unsaturated fatty acid, which is responsible for their survival in extreme conditions

III. Thermoacidophiles have dual ability to tolerate high temperature as well as high acidity

a)

I and II are true

b)

I and III are true

c)

II and III are true

d)

I, II and III are true


Question ID - 60 :-

Read the following statements regarding archaebacteria and select the correct option

I. Archaebacteria differs from other bacteria in having different cell wall structure

II. Their cell wall is made up of cellulose and contains high amount of unsaturated fatty acid, which is responsible for their survival in extreme conditions

III. Thermoacidophiles have dual ability to tolerate high temperature as well as high acidity

a)

I and II are true

b)

I and III are true

c)

II and III are true

d)

I, II and III are true

1 Answer
5876 Votes
3537

Answer Key : (b) -

(b)

Bacterial cell wall is made up of peptidoglycan, protein, non-cellulosic carbohydrates, lipids, amino acid, etc.

Archaebacteria are characterised by the absence of peptidoglycan in their wall. Instead, the wall contains proteins and no-cellulosic polysaccharides.

Thermoacidophiles have duel ability to tolerate high temperature as well as high acidity. They often live in hot sulphur springs, where the temperature may be as high as  and pH as low as 2,  Thermoplasma, Thermoproteus



Next Question :

In addition to absence of chlorophyll, what is the other difference between fungi and higher plants?

a)

Type of nutrition and composition of cell wall

b)

Cell type

c)

Nucleus

d)

Reproduction


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