li ching
imple Diffusion
1. The following refer to Activity 1: Simulating Dialysis (Simple Diffusion).
Which solute(s) were able to pass through the 20 MWCO membrane?
According to your results, which solute had the highest molecular weight? ______________________________________
Which solute displayed the highest rate of diffusion through the 200 MWCO membrane? __________________________
Using the data from Chart 1, explain the relationship between the rate of diffusion and the size of the solute.
Facilitated Diffusion
2. The following refer to Activity 2: Simulating Facilitated Diffusion.
Did any of the substances travel against their concentration gradient? Explain why or why not.
Using your results from Chart 2, what was the fastest rate of facilitated diffusion recorded? _______________. Describe the conditions that were used to achieve this rate. ___________________________________________________________
Name two ways to increase the rate of glucose transport. _____________________________________________________
Did NaCl affect glucose transport? ______________________________________________________________________
Did NaCl require a transport protein for diffusion? Why or why not? ____________________________________________
Cell Transport Mechanisms and Permeability:
Computer Simulation
EXERCISE
NAME ____________________________________
LAB TIME/DATE ________________________
The Amazing Story Of The Oldest Man On Earth: He Lived 256 Years Li Ching-Yuen, also known as Li Ching-Yun found the secret fountain of youth, as he was reportedly the oldest human on Earth, having lived 256 years. His 1933 obituaries which were featured in Time Magazine and the New York Times stated that he had outlived 23 wives and his amazing lifespan exceeds by far the oldest living person up to date, who lived 122 years and 164 days.
Li Ching-Yuen claims to have been born in 1734, but controversial birth records attest that he was born in 1677 in Qi Jiang Xian,
1. The following refer to Activity 1: Simulating Dialysis (Simple Diffusion).
Which solute(s) were able to pass through the 20 MWCO membrane?
According to your results, which solute had the highest molecular weight? ______________________________________
Which solute displayed the highest rate of diffusion through the 200 MWCO membrane? __________________________
Using the data from Chart 1, explain the relationship between the rate of diffusion and the size of the solute.
Facilitated Diffusion
2. The following refer to Activity 2: Simulating Facilitated Diffusion.
Did any of the substances travel against their concentration gradient? Explain why or why not.
Using your results from Chart 2, what was the fastest rate of facilitated diffusion recorded? _______________. Describe the conditions that were used to achieve this rate. ___________________________________________________________
Name two ways to increase the rate of glucose transport. _____________________________________________________
Did NaCl affect glucose transport? ______________________________________________________________________
Did NaCl require a transport protein for diffusion? Why or why not? ____________________________________________
Cell Transport Mechanisms and Permeability:
Computer Simulation
EXERCISE
NAME ____________________________________
LAB TIME/DATE ________________________
The Amazing Story Of The Oldest Man On Earth: He Lived 256 Years Li Ching-Yuen, also known as Li Ching-Yun found the secret fountain of youth, as he was reportedly the oldest human on Earth, having lived 256 years. His 1933 obituaries which were featured in Time Magazine and the New York Times stated that he had outlived 23 wives and his amazing lifespan exceeds by far the oldest living person up to date, who lived 122 years and 164 days.
Li Ching-Yuen claims to have been born in 1734, but controversial birth records attest that he was born in 1677 in Qi Jiang Xian,