Osmosis in a Chicken Egg. – Movement of molecules from a high concentration to a low concentration – Movement of water molecules from a high concentration.

Slides:

Advertisements

Similar presentations

Cell Membranes Osmosis and Diffusion Visi t ww w.w orld ofte ach ing. co m For 100 s of free po wer poi nts.

Advertisements

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.

Happy Tuesday Bellwork: Quickwrite – In 42 words, summarize your HW using the words concentration, diffusion, osmosis, equilibrium, isotonic, hypertonic,

1 2 nd Law of Thermodynamics All things tend toward entropy (randomness). Molecules move (diffuse) from an area of high concentration to areas of low concentration.

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

Lab 4 Notes Solutions. are homogeneous mixtures of two or more substances consist of a solvent (larger amount, usually a liquid) and solutes (smaller.

Moving Materials into and out of the Cell. Cells need to receive materials: water nutrients oxygen for the mitochondria carbon dioxide for chloroplasts.

Movement of Molecules Osmosis & Diffusion. Terms to Know Mixture - a substance consisting of two or more substances mixed together (not in fixed proportions.

Cell Transport Osmosis and Diffusion.  Particles in constant motion  Run into each other and randomly spread out  Particles move from an area of high.

Chapter 3. Passive Transport  Diffusion – molecules move spontaneously (no energy used) from an area of high concentration to an area of low concentration.

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

PASSIVE TRANSPORT Movement of molecules across a membrane that requires no energy and always occurs down a concentration gradient Types of passive transport.

Types of Transport Review. The movement of particles against the direction of diffusion requiring cell energy. ACTIVE TRANSPORT.

Osmosis SWBAT describe how osmosis affects the homeostasis of a cell.

Chapter 2 Lesson 3 Moving Cellular Materials. Cell Membrane The cell membrane is selectively permeable ◦ It allows certain things into the cell while.

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.The Cell Membrane Controls what enters and leaves the cell

Solution - a homogeneous mixture of 2 substances Solute - the dissolved substance Solvent - the dissolving agent.

JEOPARDY! React!SolutionsMore solutions Acids and Bases Matter

Diffusion Through Cell Boundaries Every living cell exists in a liquid environment that it needs to survive. One of the most important functions of the.

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

Research -Natural History: distribution, use, etc. -Taxonomy (sci. name) -Anatomy or structure -Metabolic needs -Comparisons to grass.

DO NOW 1.Get out your buffer lab 2.Which substance’s pH changed the most when acid was added? What about when base was added? 3.Why did the pH changes.

Movement through a Membrane- Passive Transport Membranes 3 Types 1.Permeable –Anything can move through 2.Impermeable –Nothing can move through 3.Semi.

TEST REVIEW. Monday, October 20, If inside the cell is hypertonic, what is the strength outside the cell? 2. Will there be more or less sugar.

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

Cell Membranes and Transport Go to Section:. The Cell Membrane The cell membrane is: selectively permeable  Permeable = Pass through (Latin)  Cell membrane.

Objective 6.0 Define solution in terms of solute and solvent (5 EQT questions)

I.The Cell Membrane Controls what enters and leaves the cell

CELL TRANSPORT CONT pp

Osmosis & tonicity Pg. EQ: How do I correctly analyze the movement of water across a membrane?

Cellular Transport Notes: Osmosis and Tonicity

Cells and Osmosis.

Diffusion, Osmosis, and the Plasma Membrane

Transport of Molecules in a Cell

Active and Passive Transport

Cell Membrane: A deeper look

Diffusion and Osmosis.

Cell Transport.

Movement across the Plasma Membrane

Cell Membranes Osmosis and Diffusion

Ch. 7: The Structure & Function of Cells

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

Osmosis Bellringer: Sketch a cell in a isotonic, hypertonic, and hypotonic solution showing the solute molecules. Objective: SWBAT predict the movement.

Movement of Molecules Osmosis & Diffusion.

Diffusion Vs. Osmosis Biology.

Mixtures & Solutions.

Membrane Function Learning Target: I can explain how cell membranes interact with their environment.

Membrane Function Learning Target: I can explain how cell membranes interact with their environment.

Passive Transport - Osmosis

Cellular Transport.

OSMOSIS & DIFFUSION.

Cell Membrane Function- Protection & Controls what enters and leaves the cell Structure- Double layered Phospholipid membrane Selectively Permeable.

Cell Membranes Osmosis and Diffusion

Passive and Active Transport

Solutions, and Movement of Molecules Therein

Movement of particles across the cell membrane without using energy

Cell Processes Diffusion & Osmosis.

Osmosis And Diffusion.

OSMOSIS & DIFFUSION.

Cell Processes.

Cells and Their Environment

Diffusion and Osmosis.

Tonicity and Solutions

Selectively permeable membranes

Chapter 3: Exchanging Materials with the Environment

Presentation transcript:

Osmosis in a Chicken Egg

– Movement of molecules from a high concentration to a low concentration – Movement of water molecules from a high concentration to a low concentration - Will allow certain molecules and ions to pass through via diffusion while restricting others Diffusion Osmosis Selectively Permeable Membrane

– A homogeneous mixture composed of two or more substances. The solution that forms has the same physical state as the solvent. Examples - Salt water, Sugar water, Air Mixture – One compound is added to another and no chemical bond is formed – Substance that dissolves another solid, liquid, or gaseous substance. – Substance dissolved by solvent Solution Solvent Solute

Types of Solutions – contains less solute (more water) compared to another solution. Water diffuses across a semi-permeable membrane OUT OF a hypotonic solution. (into egg) – contains more solutes (less water) compared to another solution. Water diffusion across a semi-permeable membrane INTO a hypertonic solution (out of egg) – two solutions have the same concentration of solutes (equate amounts of water), so there is NO NET MOVEMENT of water across a semi-permeable membrane. Hypotonic Isotonic Hypertonic

Experimental Setup Vinegar contains acetic acid, which breaks apart the solid calcium carbonate crystals

Experimental Setup You will need to be very careful with these eggs now that the shell has been removed. You will clean up any mess you make.

Experimental Setup Treatment – You will be placing your eggs into four different concentrations of sucrose 0% (distilled water) 20% sucrose 40% sucrose Unknown sucrose solution. Come up with a hypothesis for the net movement of water in each solution. Include the following. Which direction water will move (into or out of the egg) What will happen to the weight of the cell What type of solution do you think each represents (hypertonic, hypotonic, or isotonic)

Experimental Setup As a group come up with an SPECIAL TREATMENT What would you like to see an egg placed in It must be something we can find in the school Propose these to Mr. Lynch if it is possible we will try this as well.

Experimental Setup Day 1 In your group obtain four shell-less chicken eggs from Mr. Lynch. Handle them gently so the shell membranes remain intact. (Remember you will clean up any mess) Gently dry each egg and weigh them Place one egg in each of the sucrose treatment bins. Ask for help with your special treatment.