Question

Plot the data points on your graph. Match each x-value with its partner y-value and place a point on the graph at that coordinate. Draw a line that connects the points. (For additional information about graphs, see the Scientific Skills Review in Appendix F.)

Short answer

Time was the factor that the researcher varied in the time-course experiment, and it was not dependent on the cellular process. Thus, time is the independent variable plotted on the x-axis.

The concentration of phosphate (Pi) ion was dependent on the cellular process in the time-course activity. Thus, the concentration of Pi is the dependent variable plotted on the y-axis.

Step-by-step solution

Independent and dependent variables of the graph

Time was the factor that the researcher varied in the time-course experiment, and it was not dependent on the cellular process. Thus, time is the independent variable plotted on the x-axis.

The concentration of phosphate (Pi) ion was dependent on the cellular process in the time-course activity. Thus, the concentration of Pi is the dependent variable plotted on the y-axis.

Range on x-axis and y-axis

According to the data, the time ranges from 0 to 40 minutes. Thus, the range of time on the x-axis would be from 0 to 40. Five units would equally space the tick marks on the x-axis.

The Pi concentration ranges from 0 to 355. Thus, the range of Pi concentration on the y-axis would be from 0 to 400. Fifty units would equally space the tick marks on the y-axis

Plotting the data points

The first value of time is matched with the corresponding Pi concentration, and a point is placed on the graph to plot the data points. Here, for time 0 on the x-axis, the corresponding Pi concentration (0) is matched on the y-axis, and the point is placed at that coordinate of the graph.

Similarly, at time five on the x-axis, the corresponding Pi concentration is 10. Thus, a point is placed at that coordinate of the graph. Likewise, all the points are plotted on the graph.

When all the data points are plotted on the graph, a line is drawn connecting all the data points. As a result, the graph of the time-course experiment is obtained.