Preview - Phospholipids Between Us: (Part 2) Transport Through Cell Membranes

Activity 3 (Graphs)

Exploration 1

Plot your experimental data as a line graph on the graph paper provided to you based on the values entered in Table 6 and Table 7 for ‘Time’ on the X-axis and the ‘Number of glucose molecules outside the cell’ on the Y-axis.

 

Exploration 2

Plot a bar graph based on the data values in Table 9. Plot number of gated channels for glucose molecule on the X-axis and the time required for equilibrium on the Y-axis.

Questions

Please answer the questions below.

Question 12: How does the increase of concentration affect the rate of diffusion? Give an explanation based on the data that you have plotted.

Question 13: How would the presence of another molecule, such as ATP, affect diffusion of glucose molecules if ATP molecules and glucose require different channels for transport.

Question 14: How would the presence of another molecule, such as ATP, affect diffusion of glucose molecules if ATP molecules and glucose use the same channels for transport.

Question 15: How does the number of channels available affect the rate of diffusion for one type of molecule? Explain with the help of the bar graph that you have plotted.

Question 16: Will the rate of facilitated diffusion of glucose molecules increase or decrease if there were 12 channels.

Question 17: Will the rate of facilitated diffusion of glucose molecules increase or decrease if there were 1 channels.

Notes

These notes will appear on every page in this lesson so feel free to put anything here you'd like to keep track of.