Question

Arrange the growth of type of bacteria with respect to temperature in decreasing order.
A. Thermophilic
B. Psychrotrophic
C. Thermoduric
D. Mesophilic

• A. A, C, D, B
• B. A, B, C, D
• C. B, D, A, C
• D. B, C, D, A

Hint:

Thermo = heat loving, Psycho = cold loving.

Answer 1

The Correct Option is A

Concept: Bacteria are classified based on temperature preference.

Step 1: Thermophilic.

• Grow at high temperatures (45–70$^\circ$C)

Step 2: Thermoduric.

• Survive high temperatures but grow moderately

Step 3: Mesophilic.

• Grow at moderate temperatures (20–45$^\circ$C)

Step 4: Psychrotrophic.

• Grow at low temperatures (below 20$^\circ$C)

Step 5: Decreasing order.
\[ \text{Thermophilic} > \text{Thermoduric} > \text{Mesophilic} > \text{Psychrotrophic} \] Conclusion: Option (1) correct.