Final answer:
The correct answer is b) The human cell is smaller, as the plant cell's diameter of 80 micrometers is larger than the human body cell's diameter of 51 micrometers.
Step-by-step explanation:
When comparing cell sizes between a human body cell and a plant cell, it is important to note that the size of cells is typically measured in micrometers (µm). The average human body cell is given as 5.1 × 10^-4 cm in diameter, which can be converted to micrometers. Here's how:
- 5.1 × 10^-4 cm = 51 × 10^-6 m = 51 micrometers
The diameter of a plant cell is given as 8 × 10^-3 cm, which also can be converted to micrometers as follows:
- 8 × 10^-3 cm = 80 × 10^-6 m = 80 micrometers
With these conversions, we can accurately compare the sizes of the two cells. Since 80 micrometers is greater than 51 micrometers, it can be determined that the plant cell is larger, not smaller, compared to the human body cell. Therefore, the correct answer to the question is b) The human cell is smaller.