Science 10 Internet Assignment: Passive and Active Transport

Name: ___________

Go to Active Transport http://www.mhhe.com/biosci/genbio/biolink/j_explorations/ch03expl.htm

Click on Skip Intro (bottom right)
Press Start and observe

1. What do the following symbols represent?
a) Green ball -                             d) Yellow star -
b) Yellow ball -                            e) Pink star -
c) Blue ball -

Move slider to Low in ATP expenditures…….press start

2. What substances are passing through the membrane pores? What process is causing this movement?
_________________________________________________________

3. What substances are being transported in the closed (“balled”) protein carriers? __________________________________________________________

4. Which of the above substances is NOT being actively transported in/out of the cell? ________________________________

Move ATP slider to Med……press start….observe…….move ATP slider to High…..press start…..observe.

5. What substance is required to power the active transport (protein carriers)? ______________________________________

6. What happens to the above substance after it releases from the protein carrier? __________________________________________________________

7. How has the amino acid movement changed? _________________________________________________________________

Move Initial Amino Acid level to 1000.
Move ATP slider to 0…..press start….observe.

8. What happens to the active transport after the ATP slider was moved to 0? _________________________________________________________________
 

9. What happens to the amino acid and sodium movement into the cell?