Download Study Guide: Unit 3 – Cells and Cell Transport

Cell Transport Study Guide
1. Draw a phospholipid.
Label the phosphate head and lipid tails.
Label which part is hydrophilic/hydrophobic
2. List the 2 parts of the cell membrane
3. What does it mean to be selectively permeable?
4. Why is the cell membrane described as a bilayer?
5. Why is the cell membrane described as a fluid mosaic model?
6. DRAW PICTURES!!!!
A. A cell that is 70% water, 5% protein and 2% sugar is put into a solution that is 65% water,
7% protein and 3% sugar.
Water will move __________________.
Sugar will move __________________.
Protein will move _________________.
B. A cell that is 70% water, 5% protein, and 2% sugar is put into a solution that is 75% water,
3% protein, and 1% sugar.
Water will move __________________.
Sugar will move __________________.
Protein will move _________________.
C. A cell that is 70% water, 5% protein, and 2% sugar is put into a solution that is 70% water,
5% protein, and 4% sugar.
Water will move __________________.
Sugar will move __________________.
Protein will move _________________.
OSMOSIS
( isotonic, hypertonic, or hypotonic = bonus words)
*remember that the black dots cannot pass through the membrane – the open space represents
water…which can pass through the membrane.
7. Draw an arrow to indicate the movement of water, in each diagram (into/out of cell), and
then tell what happens to each cell (stays the same, shrink, swell)
______________
______________
_________________
8. If the solute (dots) in this diagram is unable to pass through the
dividing membrane, what will happen?
A. the water level will rise on the right side of the tube
B. the water level will rise on the left side of the tube
C. the water level will stay equal on the two sides
COMPARE/
CONTRAST the
kinds of
transport
9. Fill in the table
What does it
use to help:
Active
or
Transport
Passive
proteins?
Vesicles?
Needs no
help?
Does it
require
energy?
Molecules
move which
way? High to
Low or Low
to High?
SIMPLE
DIFFUSION
FACILITATED
DIFFUSION
OSMOSIS
SodiumPotassium
(Na+ -K+) pump
ENDOCYTOSIS
EXOCYTOSIS
10. Define what it means to be a specialize/differentiated cell. Give 3 examples of
differentiated cells.
11.
NUMBER AND NAME THESE LEVELS OF ORGANIZATION IN THE CORRECT
ORDER FROM SIMPLEST TO MOST COMPLEX.
_____ ______________
_____
_______________
_____
_______________
_____
_______________
_____
_______________
_____
______________