Question

A group of students studied the effect of light intensity on the rate of a cell process in Elodea plants. The students exposed Elodea plants to different light intensities. A gas was produced by the cell process. The amount of this gas was measured. The rate of the cell process was determined by the amount of gas produced. A graph of the students' measurements is shown below.


Which of these is the independent variable in this experiment?


A rate of cell process
B volume of gas
C size of Elodea plant
D intensity of light

Answer 1

Please show the graph :)

Answer 2

A group of students studied the effect of light intensity on the rate of a cell process in Elodea plants. The students exposed Elodea plants to different light intensities. A gas was produced by the cell process. The amount of this gas was measured. The rate of the cell process was determined by the amount of gas produced. A graph of the students' measurements is shown below.


Which of these is the independent variable in this experiment?


A rate of cell process
B volume of gas
C size of Elodea plant
D intensity of light

Answer 3

There is the diagram

Answer 4

in an experiment an independent variable is one which an experimenter has control over and can alter it at his will to study its effect on the dependent variable . So in this experiment what do you think is the independent variable which the students are manipulating to see its effect on the dependent variable i.e. the rate of the cell process.