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link: https://drive.google.com/file/d/1d5d-ADVTOLson4JhdZbN1KzJISNKrPQz/view?usp=sharing

Questions:

Question 5 A solution containing 4.52 x 1023 molecules/m3 of protein in water is separated from pure water by a membrane 3.12 urn thick. The diffusion coefficient of the protein through the membrane is 6.10 x 10'18 m2/s. On average, how many molecules cross 0.0330 pm2 of this membrane each second? [Answer as a positive number with 3 sig digits, but do not enter units with your answer] Your Answer: You r Answer Question 6 A ribosome is measured to have a diffusion coefficient of 2.0 x 10'8 mZ/s within a mammalian cell. How long would it take for a ribosome to diffuse an rms distance of 9.0 um, equivalent to the length of a mammalian cell? 0 0.92 seconds O 1.0 milliseconds O 75 seconds Q 0.68 milliseconds O 1.4 seconds