Microorganisms are classified by their optimum growth temperatures:
- Psychrophiles: \( -5^\circ C \) to \( 15^\circ C \).
- Mesophiles: \( 20^\circ C \) to \( 45^\circ C \).
- Thermophiles: \( 45^\circ C \) to \( 80^\circ C \).
Understanding these classifications helps in microbiology and industrial processes.
Step 1: Understanding mesophiles. Mesophiles are microorganisms that thrive in moderate temperature ranges. They are commonly found in environments such as soil, water, and the human body.
Step 2: Optimum temperature range. Mesophiles grow best at temperatures between \( 20^\circ C \) and \( 45^\circ C \), with the most rapid growth occurring between \( 25^\circ C \) and \( 40^\circ C \).
This range supports their metabolic and enzymatic activities.
Conclusion: The correct answer is \( (D) \ 25^\circ C \text{ to } 40^\circ C \).
| List I-Classification of Bacteria | List II-Example | ||
| A | Gram positive spherical shaped nonmotile bacteria | I | Clostridium tetani |
| B | Gram positive sporulating obligate anaerobic bacteria | II | Bacillus anthracis |
| C | Gram positive rod shaped nonsporulating bacteria | III | Streptococcus sp.. |
| D | Gram positive sporulating rod shaped motile bacteria | IV | Corynebacterium diphtheriae |
| E | - | V | E.coli |
Choose the correct answer from the options given below:
List I | List II | ||
|---|---|---|---|
| A | \(\Omega^{-1}\) | I | Specific conductance |
| B | \(∧\) | II | Electrical conductance |
| C | k | III | Specific resistance |
| D | \(\rho\) | IV | Equivalent conductance |
List I | List II | ||
|---|---|---|---|
| A | Constant heat (q = 0) | I | Isothermal |
| B | Reversible process at constant temperature (dT = 0) | II | Isometric |
| C | Constant volume (dV = 0) | III | Adiabatic |
| D | Constant pressure (dP = 0) | IV | Isobar |