BIO 12 Lab Qui z 1 with verified answers
The driving force for diffusion is _____. - correct answer ✔The kinetic energy of
the molecules in motion.
In diffusion, molecules move _____. - correct answer ✔From high concentration
to low concentration.
Which of the following dialysis membranes has the larges pore size? - correct
answer ✔200 MWCO
Avogadro's number is a constant for the number of ______. - correct answer
✔molecules
Glucose is a six-carbon sugar. Albumin is a protein with 607 amino acids. The
average molecular weight of a single amino acid is 135 g/mole. There is no
reason to run these solutes at the 20 MWCO because ______. - correct answer
✔Glucose and albumin are both too large to pass.
The effect of increasing the concentration of sodium chloride from 9mM to
18mM in the left beaker was to _____. - correct answer ✔Increase the rate of
diffusion.
Describe the difference between the rate of diffusion seen for sodium and urea.
- correct answer ✔Urea diffused slowly because it is larger than sodium.
