Diffusion and Osmosis Lab Results. Starch solution in the baggie What does the baggie represent? Solution with water and Iodine.

Slides:

Advertisements

Similar presentations

How do the materials needed for life get in and out of cells?

Advertisements

Why is this traffic across the membrane so important?

Movement IN and OUT of Cells Substances move in and out through the cell membrane Moving from high to low concentration DOES NOT REQUIRE ENERGY by the.

OSMOSIS OSMOSIS: The diffusion of water through a selectively permeable membrane SELECTIVELY PERMEABLE: some substances pass like water and others do.

Diffusion and Osmosis Demonstration Miss McLellan and Mr. Wall.

Cell Theory: 1. Every organism is composed of one or more cells. 2. The cell is the smallest unit that has the properties of life. 3. The continuity of.

Osmosis Problem Practice

Jeopardy MembraneTonicity Passive Transport Active Transport Potpourri Q $100 Q $200 Q $300 Q $400 Q $500 Q $100 Q $200 Q $300 Q $400 Q $500 Final Jeopardy.

The Egg Lab The Potato Lab Levels Of Organization The Cell Membrane Diffusion Facts Osmosis Facts FINAL JEOPARDY FINAL JEOPARDY.

Cell mystery Observe the two cups in front of you Your challenge: Sketch what you see Figure out What’s inside the “cell” What’s outside the “cell” What.

Learning Targets “I Can...” -Define “selective permeability.” -Model a living cell by using eggs with a dissolved shell. -Predict the results of an experiment.

Cells. Bell-Ringer Day 3: What are the 3 parts of cell theory? –Cells are the basic unit of life. –All living organisms are made of cells. –All cells.

Movement Through a Membrane

Lab Practical Lab Safety Scientific Method Graphs (Dry Mix) pH Lab

AP Lab 1 Osmosis & Diffusion. Objectives – for main concept  How does osmosis & diffusion work?  Do all particles cross the membrane? Do things flow.

IN Why don’t plant cells explode in a hypotonic solution? Did the onion cell shrink in the salt solution? Explain the reason for the change in.

Tonicity Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable.

Transporting substances By Sangarun sangchachat Diffusion Diffusion is the movement of particles from an area of high concentration to an area of low.

Osmosis.  The movement of water across a semi-permeable membrane from an area of high water potential, to an area of low water potential until water.

Osmosis. 2 Diffusion of water across a membrane Diffusion of water across a membrane Moves from high water potential (low solute) to low water potential.

Diffusion The movement of molecules from an area of high concentration to an area of low. concentration.

Break into your lab groups and look at the 5 choose your transport cards on your lab table. Identify if the card is an example of: Diffusion, Osmosis.

I can describe passive transport.

Transport of Molecules. concentration Where is there a higher concentration of yellow dots? AB.

Do Now: How did the concept of passive transport apply to our:

Lab Tomorrow: Osmosis & Diffusion Do Now: A student wants to know if water molecules can fit through the microscopic holes in a plastic bag. They fill.

Materials move across membranes because of concentration differences.

Tonicity Tonicity of two solutions separated by a semipermeable membrane, is the relative concentration of solutions that determine the direction and extent.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

…within the cell.  Movement of molecules from a high concentration to low concentration.  why does this happen?  What is it called when concentration.

Guiding Question: What is the importance of the membrane?

Getting Into and Out of Cells Cell Transport. Types of Cell Transport Passive Transport - no cellular energy required to occur - goes with the concentration.

Tonicity: The relative concentration of solutions. Hypertonic, Isotonic and Hypotonic.

Tonicity is a measure of the osmotic pressure (as defined by the water potential of the two solutions) of two solutions separated by a semipermeable membrane.

 Write a summary of what is happening in the picture. Describe what a semipermeable membrane is in your own words.

Diffusion & Osmosis Lab

Osmosis Practice. 1. Environment _____________________ hypertonic Water leaves the cell and it shrivels or shrinks.

Tonicity The affects of Osmosis.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Diffusion & Active Transport

Lab 1: Diffusion & Osmosis

Explaining the Gummy Bear Observations

Cells and Osmosis.

Types of solutions.

Transport of Molecules in a Cell

Cells: Diffusion and Osmosis

Colligative Properties: Osmotic Pressure (6.10)

Cells: Diffusion and Osmosis

CELL TRANSPORT Cell membrane is semipermeable- allows certain things in, keeps certain things out Some molecules can pass right through small spaces in.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

S2E5: Osmosis Do This: Have Reading Qs 3.3 ready to grade

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Types of solutions.

1. Cell _______________________ Environment _____________________.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

GUMMY BEAR LAB.

Tuesday, 10/17: Fun with tonicity

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Osmosis in Plant Cells In a weak solution, water will enter the cell and fill the vacuole. The cell membrane will push against the cell wall.

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Osmosis Diffusion Lab 2 Potato Lab

3.4 Diffusion and Osmosis KEY CONCEPT Materials move across membranes because of concentration differences.

Presentation transcript:

Diffusion and Osmosis Lab Results

Starch solution in the baggie What does the baggie represent? Solution with water and Iodine

After the starch baggie has been sitting in in Iodine and water!

No Salt!

After NaCl or saline solution has been added.

Use the words turgid and plasmolyzed to identify these plant cells!

Semi-permeable Membrane

Egg added to corn Syrup!

Egg added to Water!

Egg after it has been in a hypertonic solution!

In Hypotonic Solution Before placed in anything! In Hypertonic Solution

MIMF% change Egg #160.75g78.3gYou must answer this Egg #261.20g38.5g MF – MIX 100 MI Data collected for the Egg lab:

Concentration of Sugar in my Sweet potatoe MI2.57g2.53g2.45g2.63g1.62g2.07gMols MF Measured in grams %change Graph only this information because it is what is necessary %change Example of the Data for my potato