Question

question 14
the relative growth rate of psychrophilic, mesophilic and thermophilic methanogenic bacteria were tested under different conditions.
2-2: relative growth rate of psychrophilic, mesophilic and thermophilic methanogens (van lier et al., 1997)
question: if you wanted to optimize growth of both mesophiles and thermophiles, what temperature would you set?
45c
40c
20c
63c

Explanation:

Step1: Analyze the graph

Observe the growth - rate curves of mesophiles and thermophiles.

Step2: Find the overlapping high - growth region

Look for the temperature where both mesophiles and thermophiles have relatively high growth rates.

Step3: Determine the temperature

From the graph, around 45°C, both mesophiles and thermophiles have significant growth rates.

Answer:

45°C