What is a controlled variable in the investigation?
Question 2
2.
What is the independent variable in the investigation?
Question 3
3.
Which two of the following claims can be made.
Question 4
4.
Which of the following statements best explains the results of this investigation?
Question 5
5.
Looking at the data, what dialysis tubing had the smallest percent change in mass?
Question 6
6.
Looking at the data, what dialysis tubing had the greatest percent change in mass?
Question 7
7.
Why did water enter the dialysis tubing with 10% sucrose?
Question 8
8.
The student claimed that the rate of osmosis is determined by the concentation of sucrose on each side of the cell membrane. Which statement identifies the evidence that supports the claim?
C. cell type and amount of expansion by osmosis are not related
D. animal cells expand more than plant cells when they are put in pure water
E. plant and animal cells expand the same amount when put in pure water