Biological Classification And System Of Classification Question 438
Question: The conditions which would be favoured by thermoacidophiles are:
Options:
A) Hot and alkaline
B) Snow and acidic
C) Hot sulphur spring
D) Gut of cows
Show Answer
Answer:
Correct Answer: C
Solution:
Archaebacteria is a primitive group of bacteria.
The three main groups of archaebacteria are methanogens, halophiles and thermoacidophiles.
Methanogens are found in the musk of swamps and marshes, the rumen of cattle sewage, sludges and gut of termites.
Halophiles are named so because they usually occur in salt rich substrata like salt pans, salt beds and salt marshes.
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.