Notebook Section: _________________
Name: _________ANSWER KEY________________ Date: ______________________ Period:____
Topic 3 Keystone Quiz (Cellular Transport)
1. Molecules naturally move from an area of _____ concentration to an area of _____ concentration.


 high...low
 low...high
high...high
low...low
2. This cell barrier refers to the "fluid mosaic mode" and is highly selective about what passes through


 nuclear membrane
 cell membrane
gap junction
cell wall
3. Which of these is the most likely to diffuse through a cell membrane
 small, nonpolar molecule
 ion


large molecule
polar molecule
4. Which form of cellular transport moves AGAINST the concentration gradient?
 active transport
 osmosis


diffusion
facilitated diffusion
5. Water will exit the cell when placed in a/n _______ environment

polar

hypotonic
 hypertonic

isotonic

isotonic
6. Which of the following organisms does NOT have a cell wall?


 portabella mushroom
 giraffe
E. coli
roses
7. Facilitated diffusion uses which macromolecule to help move items across?
 nucleic acid
 protein


lipid
carbohydrate
8. The sodium potassium pump is an example of
 removal; facilitated diffusion
 removal; active transport


addition; osmosis
addition; diffusion
9. The diffusion of water across a membrane is known as


 osmosis
 diffusion
facilitated diffusion
active transport
10. Plants typically prefer to be in a/n ______ environment.
 hypotonic

hypertonic

ionic
Name: _____________________________________
Notebook Section: _________________
Date: ______________________ Period:____
Topic 3 Keystone Quiz (Cellular Transport)
1. Molecules naturally move from an area of _____ concentration to an area of _____ concentration.




high...high
low...low
high...low
low...high
2. This cell barrier refers to the "fluid mosaic mode" and is highly selective about what passes through




gap junction
cell wall
nuclear membrane
cell membrane
3. Which of these is the most likely to diffuse through a cell membrane




small, nonpolar molecule
ion
large molecule
polar molecule
4. Which form of cellular transport moves AGAINST the concentration gradient?




active transport
osmosis
diffusion
facilitated diffusion
5. Water will exit the cell when placed in a/n _______ environment

polar

hypotonic

hypertonic

isotonic

isotonic
6. Which of the following organisms does NOT have a cell wall?




E. coli
roses
portabella mushroom
giraffe
7. Facilitated diffusion uses which macromolecule to help move items across?




nucleic acid
protein
lipid
carbohydrate
8. The sodium potassium pump is an example of




removal; facilitated diffusion
removal; active transport
addition; osmosis
addition; diffusion
9. The diffusion of water across a membrane is known as




facilitated diffusion
active transport
osmosis
diffusion
10. Plants typically prefer to be in a/n ______ environment.

hypotonic

hypertonic

ionic