Transcript Cellular Transport Reading Activity

Cellular Transport
Reading Activity
Directions
• Get out your notes and title it Cell Membrane
Notes
• Go to Page 50 and Read the first paragraph under
the heading: Cell Membrane
Question
What is signal transduction?
Directions
• Read about the General Characteristics of the cell
membrane
• In your notes, write the definition of SemiPermeable
Question
List some words used to describe the cell membrane.
Directions
• Read the first paragraph of the Cell Membrane
Structure
• In your notes:
• Draw a phospholipid (head and 2 tails)
• Draw a small phospholipid bilayer with proteins and
carbohydrate chains
Question
• What three macromolecules make up the cell
membrane?
Directions
• Read the second paragraph of the Cell Membrane
Structure
• In your notes:
• Write which molecules can pass freely through the cell
membrane and why they can do that.
• Write which molecules cannot pass freely through the
cell and why they cannot.
• Describe cholesterol’s role in the cell membrane
Directions
• Read the third, fourth and fifth paragraph of the
Cell Membrane Structure
• In your notes:
• Write the functions of proteins in the cell membrane.
Directions
• Go to page 58 and read the first paragraph
underneath 3.3 Movements Through Cell
Membranes
• In your notes:
• Make a list of passive forms of transport and active
forms of transport
• Active = __________ Energy
• Passive = __________ Energy
Directions
• Read the Section on Diffusion
• In your notes:
• Define:
• Diffusion
• Concentration Gradient
• Equilibrium
Draw
• Draw a concentration gradient where one side has
a higher concentration than the other.
Extracellular Fluid
Intracellular Fluid
(Cytoplasm)
Directions
• Read the section on facilitated diffusion
• In your notes:
• Define:
• Facilitated Diffusion
• Facilitated diffusion is similar to simple diffusion in that it only
moves molecules from regions of __________ concentration
toward regions of ___________ lower concentration.
• Watch the Video
• https://www.youtube.com/watch?v=vKGN_Zhz8AY
Directions
• Read the section on Osmosis
• In your notes:
• Define:
•
•
•
•
Osmosis
Isotonic
Hypertonic
Hypotonic
• Write:
(High Water)
(Low solute)
(Low Water)
(High solute)
• Water moves from hypotonic solutions  Hypertonic solutions
Draw
• Draw a concentration gradient where one side has
a higher concentration than the other.
A
B
• Which
direction
will the
water flow?
• Which
direction
will the
water flow?
• Which
direction
will the
water flow?
Directions
• Read the section on filtration
• In your notes:
• Define:
• Filtration
• Edema
Directions
• Read the paragraph under Active Mechanisms
• In your notes:
• Passive transport = movement from ______ to _____
concentration and _________ require energy.
• Active transport = movement from ________ to ______
concentrations and ___________ require energy.
Directions
• Read the section on Active Transport
• In your notes:
• Define:
• Active Transport
• How is active transport similar to facilitated diffusion?
• How is active transport different from facilitated
diffusion?
• Why are protein channels involved in active transport
called pumps?
• Particles that are transported via active transport.
Directions
• Read the section on Endocytosis and Exocytosis
• In your notes:
• Define:
•
•
•
•
•
Endocytosis
Exocytosis
Pinocytosis
Phagocytosis
Receptor mediated endocytosis
• How is active transport similar to facilitated diffusion?
• How is active transport different from facilitated diffusion?
• Why are protein channels involved in active transport called
pumps?
• Particles that are transported via active transport.
• Watch the Video