2 movement of substances

Question 1

Concentration gradient is the _________ in concentration between 2 regions

Answer 1

difference

Question 2

Diffusion is the ___ movement of particles, from a region of ________ to a region of _______, down a __________ _______

Answer 2

net, higher conc., lower conc., conc. gradient

Question 3

Factors affecting rate of diffusion:
-c
-d
-s

Answer 3

-conc. gradient
-diffusion distance
-sa:v

Question 4

Shorter diffusion distance=____ time needed for substance to travel, hence r.o.d. is ______

Answer 4

less, higher

Question 5

Larger sa:v=______ r.o.d.

Answer 5

higher

Question 6

Osmosis is the ____ movement across a ____, from a region of _________ to a region of ___________

Answer 6

net, p.p.m., higher wp, lower wp

Question 7

When a cell is placed in a solution with higher wp, ________ has a lower wp than soln. Water _______ cell via ________ through ____.

Question 8

When water enters cell, ________ expands, pushing _________ against ____ ____. Cell becomes _______ due to _______ _________

Answer 8

vacuole, cytoplasm, cell wall, turgid, turgor pressure