Question

explain Archaebacteria
(2marker)​

Answer 1

Archaebacteria

• Archaebacteria are simple prokaryotes that are dwell in extreme conditions like thermal hot springs, miles below the sea level, ice glaciers etc.

• They are unicellular organisms and have a proteinaceous cell cover, rather a conventional peptidoglycan cell wall.

• They are heterotrophic and saprophytic in nature.

• A certain type of archaebacteria known as Thermophiles are found in hot springs and volcanic regions, they are safeguard by a thick cell layer and heat efficient enzymes (Generally enzymes get degenerated at high temperatures).

• Similarly, archaebacteria found in cold environments are termed as Cryophiles and the ones inhabiting saline regions are Halophiles.

• They are fluctative aerobes, meaning they can switch to anaerobic respiration in absence of oxygen.

• They reproduce asexually through binary fission.

E.g., Thermoproteus etc.

Answer 2

$\huge\sf{Archaebacteria}$

• Archaebacteria are simple prokaryotes that are dwell in extreme conditions like thermal hot springs, miles below the sea level, ice glaciers etc.
• They are unicellular organisms and have a proteinaceous cell cover, rather a conventional peptidoglycan cell wall.
• They are heterotrophic and saprophytic in nature.
• A certain type of archaebacteria known as Thermophiles are found in hot springs and volcanic regions, they are safeguard by a thick cell layer and heat efficient enzymes (Generally enzymes get degenerated at high temperatures).
• Similarly, archaebacteria found in cold environments are termed as Cryophiles and the ones inhabiting saline regions are Halophiles.
• They are fluctative aerobes, meaning they can switch to anaerobic respiration in absence of oxygen.
• They reproduce asexually through binary fission.
• E.g., Thermoproteus etc.