Question

1. refer to figure 2. which of the following information can be interpreted based on the data shown in the graph?

the persistent bacteria completely died off after 10 hours of being exposed to the antibiotic.
the tolerant and persistent bacteria had an equal number of survivors after 6 hours of being exposed to the antibiotic.
the persistent bacteria had better survival rates than the tolerant bacteria group.
the susceptible bacteria completely died off after 5 hours of being exposed to the antibiotic.

Explanation:

To solve this, we analyze each option:

1. For "Persistent bacteria died off after 10h": Without seeing the graph, but if the graph doesn't show this (e.g., maybe they still exist), this is wrong.
2. "Tolerant and persistent equal at 6h": Need graph data, but likely not the case without evidence.
3. "Persistent better survival than tolerant": Again, graph - dependent, but not necessarily true.
4. "Susceptible died off after 5h": Susceptible bacteria are typically killed quickly by antibiotics, so this is a plausible interpretation if the graph shows their count at 0 after 5 hours.

Answer:

The susceptible bacteria completely died off after 5 hours of being exposed to the antibiotic.