Transport and Tonicity Foldable Notes · Osmosis (Inside lower flap) • (Vocabulary) Osmosis...
Transcript of Transport and Tonicity Foldable Notes · Osmosis (Inside lower flap) • (Vocabulary) Osmosis...
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Transport and Tonicity Foldable Notes
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Notes and Foldables
• The first part of the power point should go in your Alpha
Notes
• The rest of the power point slides will go in the foldables.
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TEKS
• (4) Science concepts. The student knows that cells are
the basic structures of all living things with specialized
parts that perform specific functions and that viruses are
different from cells. The student is expected to:
– (B) investigate and explain cellular processes, including
homeostasis, energy conversions, transport of molecules, and
synthesis of new molecules
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Vocabulary
• Solute
• Solvent
• Solution
• Hydrophobic
• Hydrophilic
• Cell/Plasma Membrane
• Phospholipid bi-layer
• Concentration gradient
• Permeable
• Selectively permeable
• Equilibrium
• Diffusion (Simple Diffusion)
• Facilitated diffusion
• Osmosis
• Aquaporins (PreAP)
• Active transport
• Hypertonic
• Hypotonic
• Isotonic
• Cytolysis (PreAP)
• Turgor (PreAP)
• Plasmolysis (PreAP)
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Essential Question
• How do concentration of solute molecules affect the
movement of water?
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Vocabulary (Include all vocabulary in Alpha Notes)
• Solute – a molecule that is being dissolved
– Ex: salt or sugar will dissolve in water
Na+ (Sodium Ion)
Cl- (Chlorine Ion)
NOTICE:
look how the
water
molecules
orient
themselves
to the + or –
solute ions
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• Solvent – a molecule that can dissolve something
– Ex: Water (the universal solvent)
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• Solution – made up of solvent and solutes
Solute
Solute
Solute
Water
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• Hydrophobic – molecule that does NOT want to be around water ** NONPOLAR (ex: oil)
–HATES WATER
• Hydrophilic – molecule that wants to be around water -** POLAR (ex: sugar, salts, other waters)
–LOVES WATER
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Phospholipids (In Alpha Notes)
• Draw this diagram in
your notes
Phosphate Head
Lipid Tails
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Cell (or Plasma) Membrane (In Alpha Notes)
Phospholipid Bilayers – lipid layers creates a water proof
boundary for the cells (Purple Area)
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Cell (or Plasma) Membrane (In Alpha Notes)
* Cell membranes control what enters or leaves the cells
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Concentration Gradient
• Concentration Gradient – the difference between
molecules (green hexagons) on opposite sides of the
membrane
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• Notice the difference between HIGH concentration and
LOW concentration
High Concentration
Low Concentration
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Permeable
• Permeable – when molecules can cross a membrane
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Selectively Permeable
• Selectively Permeable – when certain molecules are
allowed to cross a membrane
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• IF they can, molecules will ALWAYS try to equal out on
both sides
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Equilibrium
• Equilibrium – when solute amounts are EQUAL
everywhere (usually referring to both sides of a
membrane)
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• The rest of the slides go into
your foldables…
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Cellular Transport Foldable
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Cellular Transport Foldable
Outside
Draw the images on the outside flaps for “Simple Diffusion”, “Osmosis”,
“Facilitated Diffusion”, and “Active Transport”
Cellular Transport
Picture of
Simple
Diffusion
Picture of
Osmosis
Picture of
Facilitated
Diffusion
2 Pictures
for Active
Transport
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Cellular Transport Foldable
Inside
Draw the pictures and describe the transport from the following slides…
Cellular Transport
Simple
DiffusionOsmosis
Facilitated
Diffusion
Active
Transport
Lower inside
flap Describe
Simple
Diffusion
Lower inside
flap Describe
Osmosis
Lower inside
flap Describe
Facilitated
Diffusion
Lower inside
flap Describe
Active
Transport
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Picture for Simple Diffusion
Outside Image
HIGH Concentration
LOW Concentration
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Simple Diffusion
(Inside lower flap)
• (Vocabulary) Diffusion - ALWAYS moves solutes from
High Concentration Low Concentration
(Down the concentration gradient)
• Simple diffusion allows molecules to move through the
phospholipid bilayer without needing help.
• Diffusion NEVER needs energy (ATP)
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Simple Diffusion
(Inside lower flap if space is available)Examples:
• 1) perfume/cologne will diffuse through the entire room when someone sprays it.
• 2) if the room catches on fire, the students will diffuse from inside (High concentration) to outside (Low concentration) of students
• 3) a child going down a slide is like moving down the concentration gradient.
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Picture for Facilitated Diffusion
Outside ImageHIGH Concentration
LOW Concentration
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Facilitated Diffusion
(Inside lower flap)
• Facilitated Diffusion ALWAYS moves from High Concentration Low Concentration(Down the concentration gradient)
• (Vocabulary) Facilitated diffusion - REQUIRES a helper transport protein to get solute molecules across the phospholipid bilayer.
• Facilitated Diffusion NEVER needs energy (ATP)
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Facilitated Diffusion
(Inside lower flap)
• The solute molecules are either Too BIG or Too
HYDROPHILIC to cross the lipid area of the phospholipid
bilayer
• Transport proteins act as a tunnel that solutes travel
through.
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Picture for Osmosis
Outside ImageHIGH Concentration
LOW Concentration
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Osmosis (Inside lower flap)
• Osmosis ALWAYS moves from
High Concentration Low Concentration
(Down the concentration gradient)
• Osmosis REQUIRES a helper transport protein to get
WATER molecules ( ) across the phospholipid bilayer.
• Osmosis NEVER needs energy (ATP)
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Osmosis (Inside lower flap)
• (Vocabulary) Osmosis – Movement of water across a membrane
• Water molecules will never be able to easily cross the lipid area of the phospholipid bilayer, but ALL CELLS NEED WATER
• Aquaporin is the transport protein that acts as a tunnel that solutes travel through.
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• NOTICE: There are two
pictures for Active
Transport. Put one
picture above the other on
the inside upper flap…
2 Pictures for Active Transport
Outside Image
Picture 1
Picture 2
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Step 1 for Active Transport
Outside upper imageLOW Concentration
HIGH ConcentrationATPADP
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Step 2 for Active Transport
Outside lower imageLOW Concentration
HIGH Concentration
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Active Transport (Inside lower flap)
• Active Transport ALWAYS moves from LOW Concentration HIGH Concentration(AGAINST the concentration gradient)
• (Vocabulary) Active Transport- ALWAYS REQUIRESENERGY (ATP) and a helper transport protein to get solute molecules across the phospholipid bilayer AGAINST the concentration gradient
• Active Transport ALWAYS needs energy (ATP)
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Active Transport (Inside lower flap)
• Ex: Think of a bouncer at a popular club.
When the cell (club) is full, and a solute (person) wants to try and
get in, they have to PAY the bouncer to let them “sneak” by.
Money would be like the cell paying ATP energy to make the
protein channel (bouncer) let the solute (person) in.
• Active Transport is the only kind of cell movement that
REQUIRES energy to work.
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Tonic Solution
Concentration Foldable
Outside
Label the outside flaps with “Hypertonic”, “Isotonic”, and “Hypotonic”
Tonic Solution Concentration
Hypertonic Isotonic Hypotonic
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Tonic Solution
Concentration Foldable
Middle
Hypertonic
Explanation
Isotonic
ExplanationHypotonic
Explanation
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Tonic Solution
Concentration Foldable
Tonic Solution Concentration
Animal Cell
diagrams before
and after in
hypertonic solution
Animal Cell
diagrams before
and after in isotonic
solution
Animal Cell
diagrams before
and after in
hypotonic solution
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Animal Cell Before and After Images
• The solid line is the membrane before, and the dotted line
is where the was in the before.
• The dotted line is a marker, so you can show a new solid
line for change in membrane position.
Animal: Initial (show water movement w/ arrow) Animal: Final (show change in the cell/membrane)
Water leaves
the cell
Cell
Membrane
shrinks
Solutes
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Tonic Solution
Concentration Foldable
Tonic Solution Concentration
Plant Cell diagrams
before and after in
hypertonic solution
Plant Cell diagrams
before and after in
isotonic solution
Plant Cell diagrams
before and after in
hypotonic solution
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Plant: Initial (show water movement w/ arrow)Plant: Final (show change in the cell/membrane/wall)
Plant Cell Before and After Images
• The solid line is the membrane before, and the dotted line
is where the was in the before.
• In plant cells the membrane is attached to the cell wall in
places.
Water leaves
the cellCell
Membrane
shrinks
Solutes
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Explanations of Tonicity
• The next 4 slides will go on the Explanation sections of
the foldable.
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Types of osmotic solutionsHypertonic Solution
• Low water concentration (few water molecules) because of more solutes = water moves out & cell shrinks (Plasmolysis)
Isotonic Solution
• Equal solutes & water molecules, so equal movement of water into and out of the cell
Hypotonic Solution
• High water purity (lots of water molecules) & less solutes = water moves in & cell expands and may burst (Cytolysis)
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Hypertonic
• Hypertonic means there are MORE solutes and less
water in a solution
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Isotonic
• Hypertonic means there are EQUAL amounts of solutes
compared to water in a solution
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Hypotonic
• Hypertonic means there are LESS solutes and more
water in a solution
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Osmosis (Write this statement on the back)
• Water ALWAYS moves from Hypotonic solutions to
Hypertonic Solutions.
HYPERTONIC HYPOTONIC
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Blood cell examples in tonic solutions
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Plant Cells in hypotonic solution Plant Cells in hypertonic solutionPlant Cells in isotonic solution
Plant cell examples in tonic solutions
Plasmolysis Flaccid Turgid