Organisms which grow best in the temperature range of 0-15 °C are referred to as:

Question

Question

This question was previously asked in

UKPSC Combined Upper PCS (Prelims) Exam (General Studies) Official Paper-I (Held On: 14 Jul, 2024)

Answer 1

The correct answer is option 2.

Key Points

Psychrophiles are organisms (mainly bacteria and archaea) that thrive in extremely cold environments, typically between 0°C and 15°C. Hence, option 2 is correct.
They are commonly found in deep ocean waters, polar regions, glaciers, and permafrost soils.
Their enzymes and cellular structures are adapted to function efficiently at low temperatures.

Additional Information

Thermophiles: Prefer high temperatures (45–80 °C)
Mesophiles: Grow best at moderate temperatures (20–45 °C)
Hydrophiles: Not temperature-specific, rather adapted to water-rich environments