A Levels Biology (9700)•9700/13/O/N/21

Explanation
Identifying slowest and fastest water uptake rates in order
Steps:
- Find the minimum rate from investigation data: 0.3 mm/s (slowest).
- Find the maximum rate from investigation data: 1.3 mm/s (fastest).
- Match the option listing slowest first, then fastest.
- Select A as it pairs 0.3 mm/s followed by 1.3 mm/s.
Why A is correct:
- It pairs the actual minimum (0.3 mm/s) and maximum (1.3 mm/s) rates, defining slowest and fastest per the data.
Why the others are wrong:
- B: Starts with 3.3 mm/s, an invalid rate not in the investigation.
- C: Starts with 1.3 mm/s (fastest) as slowest, reversing extremes.
- D: Same as C, misorders 1.3 mm/s and 0.8 mm/s.
Final answer: A
Topic: Transport mechanisms
Practice more A Levels Biology (9700) questions on mMCQ.me