Biological-Classification-And-System-Of-Classification Question 758
Question: Identify the correct statements regarding archaebacteria.
(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.
Options:
A) (i) and (ii)
B) (ii) and (iii)
C) (i) and (iii)
D) (i), (ii) and (iii)
Show Answer
Answer:
Correct Answer: C
Solution:
Bacterial cell wall is made up of protein, non- cellulosic ammo acid etc.
Archaebacteria are characterized by the absence of peptidoglycan in their wall.
Instead, the wall contains proteins and non-cellulosic polysaccharides.
Thermoacidophiles have dual 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 $ 80{}^\circ C $ and pH as low as 2, e.g., Thermoplasma, Thermoproteus.
BETA
