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Question
Which of the following bacteria can survive in extreme conditions such as hot springs and salty areas?
- Cyanobacteria
- Mycoplasma
- Archaebacteria
- Eubacteria
Details:
NCERT Reference:
- Topic: Kingdom Monera
- Chapter: 2 Biological Classification
- Page Number: 12-13
- Paragraph: Archaebacteria (2.1.1)
Correct Answer:
Option 3: Archaebacteria
Explanation:
Archaebacteria are unique microorganisms that can survive in extreme habitats, including hot springs (thermoacidophiles), highly salty environments (halophiles), and marshy areas (methanogens). Their ability to live in such conditions is attributed to their distinct cell wall structure, which is different from other bacteria.
Solution:
Archaebacteria are adapted to thrive in harsh conditions due to their specialized cell walls, allowing them to withstand extreme temperatures and pH levels. They can be found in diverse environments such as the gut of ruminants, where they produce methane.
Reference:
NCERT Class 11 Biology, Chapter 2 (Biological Classification), Kingdom Monera (2.1)