APHY 201 Lab exam 1 Questions with Correct Answers

APHY 201 Lab exam 1 Questions with Correct Answers


Question 1:
how to calculate rate of diffusion in auger plates
Answer:
....distance/ time


Question 2:
continual random movement of particles among one another in a liquid or gas
Answer:
....simple diffusion
measurable movement of particles from an area of higher concentration to lower
concentration until


Question 3:
the diffusing substance is uniform.
Answer:
....net diffusion


Question 4:
concentration diff*X-area*temp/distance of diffusion*molecular weight.
Answer:
....ficks law
the net diffusion of a solvent through a selectively permeable membrane. (Net diffusion of
water) -
....osmosis


Question 5:
how does the cross sectional area of the diffusion pathway influence the rate of diffusion?
Answer:
....^area
^rate


Question 6:
The ability of a solution to cause a cell within it to gain or lose water
Answer:
....tonicity

, Question 7:
solutes that either do not diffuse or do so with difficulty through a membrane,
Answer:
....osmotically active


Question 8:
solutions containing a higher concentration of osmotically active particles than blood plasma
are? -
Answer:
particles


Question 9:
solutions containing a lower concentration of osmotically active particles than blood plasma
are? -
Answer:
....hypertonic
....hypotonic


Question 10:
hypertonic solution
Answer:
....5% NaCl, or greater than 0.9% NaCl


Question 11:
isotonic solution
Answer:
. 0.9% NaCl


Question 12:
hypotonic solution
Answer:
....distilled water, or less than 0.9% NaCl
increase in the number of motor units activated that allows for increased strength and speed of