Q78. Consider the following statements:
1. Some microorganisms can grow in environments with temperature above the boiling point of water.
2. Some microorganisms can grow in environments with temperature below the freezing point of water.
3. Some microorganisms can grow in highly acidic environments with a pH below 3.
a. Only one
b. Only two
c. All three
d. None
Question from UPSC Prelims 2023 GS Paper
Explanation :
c. All three
Microorganisms
There are various types of microorganisms that have adapted to survive and grow in extreme conditions.
1. Some microorganisms, known as thermophiles, can grow in high-temperature environments above the boiling point of water (100°C). For example, some bacteria and archaea can thrive in hot springs and hydrothermal vents.
2. Some microorganisms, known as psychrophiles, can grow in environments with temperatures below the freezing point of water (0°C). These microorganisms can be found in the Arctic, Antarctic, and other permanently cold environments.
3. Some microorganisms, known as acidophiles, can grow in highly acidic environments with a pH below 3. These microorganisms can be found in acidic hot springs, acid mine drainage, and other acidic environments.
