Question

what type of bacterial activity is represented in the diagram?
a generation time
b isotonic conditions
c hypertonic conditions
d hypotonic conditions

Explanation:

• Isotonic conditions mean the concentration of solutes is the same inside and outside the cell. In this case, water moves in and out of the cell at an equal rate, which is what the diagram shows.
• Generation time refers to the time it takes for a population of bacteria to double, which is not depicted here.
• Hypertonic conditions would have more solutes outside, causing water to leave the cell (cell shrinking).
• Hypotonic conditions would have more solutes inside, causing water to enter the cell (cell swelling).

Answer:

B. isotonic conditions