Science 10 Internet Assignment: Cell Size            Name: ________________

Go to Cell Size http://www.mhhe.com/biosci/genbio/biolink/j_explorations/ch02expl.htm

Press "Skip Intro"

1. Observe and record the values for each of the following:
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

Change the following values and record how it affects the above two readings.

2. Move radius to 10x.

a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

3. Move radius back to 1x and change cell shape to 3 : 1.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

4. Move cell shape to 10 : 1.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

Leave cell shape where it is now.

5. Change # of dimples to 40.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

6. Change # of dimples to 60.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

7. Change # of dimples to 80.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

Move dimples back to 0.
8. Move villi % to 20.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

9. Move villi % to 50.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

10. Move # of dimples to 20.
a) Surface / Volume ratio: _____________
b) Relative Diffusion Rate : ____________

11. Create a cell with the greatest volume ratio and diffusion rate. Record all values below for this cell.

12. Create a cell with the least volume ratio and diffusion rate. Record all values below for this cell.