Transcript CH 8.1 Study Guide

CH 8.1
Study Guide
• 1. Diffusion stops when it reaches
equilibrium (equal distribution)
• 2.KNOW THE VOCAB SHEET FROM
YOUR NOTESBOOK!
• 3. Osmosis via the plasma membrane
controls homeostasis.
4. In a hypertonic solution,
1. Animal cell—shrivel
2. Plant cell—will get smaller and wilt
(plasmolysis)
water
solute
5. In a hypotonic solution,
Animal cell—swell and maybe even burst
Plant cell—will swell and get firmer because
the cell wall prevents it from bursting
water
solute
6. In a isotonic solution,
1. Animal cell—stays the same
2. Plant cell—stays the same
water
solute
7. Page 22 of
Notebook
Function
Active Transport
-Uses energy
Energy Requirement
Passive Transport
-Only uses carrier
proteins
-Move
things
across the
cell
membrane
-Goes “against” the
concentration gradient
-Use
carrier
proteins
Use of transport proteins
-Doesn’t use energy
-Uses both channel &
carrier proteins
-Goes “with” the
concentration
gradient
Concentration Gradients
8. The two types of transport proteins
are channel proteins and carrier proteins:
- Alike: Both are transport proteins
embedded in the plasma membrane.
- Different: Carrier proteins will bind
to a particle and then carry it through.
In contrast, channel proteins form a
channel to allow materials through the
cell membrane.
9. Simple Diffusion & Facilitated Diffusion
Alike
-Both are types of
passive transport
-Both involve the
movement of
particles/solute
across the cell
membrane
Different
-Facilitated
diffusion uses
transport proteins
10. Although both involve movement
across the membrane, osmosis is the
diffusion of water while diffusion is the
movement of all other particles.
11.
Endocytosis
Alike
-Both are types of
active transport
-Both involve the
movement of
particles/solute
across the cell
membrane
-Both use energy
&
Exocytosis
Different
-Endocytosis
involves things
entering the cell
-Exocytosis
involves things
exiting the cell
12..
Phagocytosis
Alike
-Both are types of
active transport
-Both involve the
movement of
particles/solute across
the cell membrane
-Both use energy
-Both are types of
endocytosis
&
Pinocytosis
Different
-Phagocytosis is
cell eating (taking
in solid particles)
-Pinocytosis is cell
drinking (taking in
liquid particles)
• 13. Cells must be small to allow them to
be packed together tightly. They also
need to be small so they are efficient in
bringing in materials and getting rid of
waste. Also, if the volume of a cell is too
large, the cell will burst and die. You
want a larger surface area as related to
its volume. (SA/V)
• 14. Surface Area (SA)= (lxw)x6
– Volume= l x w x h
OR
Side³