Download Cellular Transport

Cellular Transport
How Your Cells Eat, Drink
and be Merry!
Do Your Cells
Eat and Drink?
• Cells must take in
water and
nutrients in order
to function.
Mmm…..
What part of the cell
allows it to take in
nutrients and water?
Of What is the Cell
Membrane Made?
• Proteins and Lipids
What are the Proteins
in the Cell Membrane?
Marker
Channel
Receptor
SO….. How DO Your
Cells Eat, Drink and be
Merry?
Cells move substances
through the cell membrane by
a process called transport
• Two Types of Transport:
–Passive Transport
–Active Transport
What is
Passive Transport?
• Requires no energy from cell.
• Molecules move from
high concentration to
low concentration.
• Molecules move with the
concentration gradient.
What’s happening?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
How would diffusion
happen in a cell?
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
Osmosis is a type of
diffusion
Cell Membrane
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
HELP WANTED!
I’m a
Channel, I
can help!
Explain what
is happening
Explain what
is happening
Explain what
is happening
Explain what
is happening
Explain what
is happening
Explain what
is happening
Explain what
is happening
Explain what
is happening
How does Passive
Transport affect
my cells?
What would happen to
the animal cells in each
beaker?
80% H2O
80% H2O
80% H2O
100% Distilled
Water
80% Water
20% Dissolved
Substances
70% Water
30% Dissolved
Substances
Which way did the
water move?
80% H2O
100% Distilled
Water
Why did the cell
get so big?
Which way did the
water move?
80% H2O
80% Water
20% Dissolved
Substances
Why did the cell
stay the same
size?
Which way did the
water move?
80% H2O
70% Water
30% Dissolved
Substances
Why did the cell get
so small?
REVIEW
1. What part of the cell regulates what
goes in and out?
2. What are the two components of
the cell membrane?
3. What are the two types of
transport?
4. What are the characteristics of
passive transport?
MORE REVIEW
1. Explain diffusion. Why does it
occur?
2. Explain osmosis. Why does it
occur?
3. Explain facilitated diffusion.
4. What is the role of the channel
protein in facilitated diffusion?
Even MORE Review!
1. What happens to an animal cell
when there are more dissolved
substances on the outside of
the cell?
2. The inside?
3. When there are equal
amounts?
How is Active
Transport different?
1. Active transport requires energy.
2. Molecules move from low
concentration to high
concentration
3. Molecules move against
concentration gradient.
What is this cell doing?
Endocytosis
• Cells bring large in particles using
cell membrane
– There are 2 types:
• Phagocytosis
• Pinocytosis
• Channel proteins are used to bring in
large molecules.
http://w3.uokhsc.edu/human_physiology/ATPase.htm
Phagocytosis
Amoeba
• Your white bloods cells also do this.
• This is the ingestion of large particles.
Pinocytosis
• Tiny pockets form along cell membrane, and
pinch off into vacuoles inside the cell.
Sometimes called “Cell Drinking”
Exocytosis
• This is how the cell gets rid of waste.
REVIEW
1. How is Active transport different
from passive?
2. What part of the cell is used to
bring in particles?
3. How does a cell (including white
blood cells) take in LARGE
particles?
4. How does a cell take in small or
liquid particles?