Aphy 201 Lab Exam 1 Updated Actual Questions And Correct Answers

APHY 201 LAB EXAM 1 UPDATED ACTUAL QUESTIONS
AND CORRECT ANSWERS

Question:
1. how to calculate rate of diffusion in auger plates

Answer:
distance/ time

Question:
2. simple diffusion

Answer:
continual random movement of particles among one another in a liquid or gas

Question:
3. net diffusion

Answer:
measurable movement of particles from an area of higher concentration to lower
concentration until the diffusing substance is uniform.

Question:
4. ficks law

Answer:
concentration diffX-areatemp/distance of diffusion*molecular weight.

Question:
5. the net diffusion of a solvent through a selectively permeable membrane. (Net
diffusion of water)




Answer:
osmosis

, Question:
6. how does the cross sectional area of the diffusion pathway influence the rate of
diffusion?

Answer:
^area ^rate

Question:
7. tonicity

Answer:
The ability of a solution to cause a cell within it to gain or lose water

Question:
8. osmotically active particles

Answer:
solutes that either do not diffuse or do so with difficulty through a membrane,

Question:
9. solutions containing a higher concentration of osmotically active particles than
blood plasma are?

Answer:
hypertonic

Question:
10. solutions containing a lower concentration of osmotically active particles than
blood plasma are?

Answer:
hypotonic

Question:
11. 5% NaCl, or greater than 0.9% NaCl

Answer:
hypertonic solution

Question:
0.9% NaCl

Answer:
isotonic solution