how do molecules move in and out of our cells?. introduction you will be: reviewing cell basics if...

How do molecules move in and out of our cells?

Introduction

You will be:You will be:

• Reviewing Cell Basics if needed.

• Learning about diffusion.

• Learning about osmosis.

• Taking quizzes to make sure you know your stuff!

This button will take you through to the next set of information! JUST CLICK!

This button will take you through to the next Quiz Question! JUST CLICK!

Multiple Choice answers on Quizzes are set in buttons. JUST CLICK your answer-choice!

Quiz 1: Question #1/3

A) DNA molecule

B) Cell

C) Organ System

All living things are composed of at least one ______________.

D) I don’t know…

A) DNA molecule

B)B) CellCell

C) Organ System

NextQuestion

Great Job! Let’s move on

to the Next Question!

A)A) DNA moleculeDNA molecule

B) Cell

C) Organ System

SomeReview

Sorry, that’s not correct…

Let’s Review Again!

A) DNA molecule

B) Cell

C)C) Organ SystemOrgan System

SomeReview

A) DNA molecule

B) Cell

C) Organ System

D)D) I don’t know…I don’t know…

Some Review

No Problem…

Which process keeps the internal conditions of cells stable and consistent?

A) Metabolism

B) Photosynthesis

C) Homeostasis

A) Metabolism

B) Photosynthesis

C)C) HomeostasisHomeostasis

NextQuestion

A)A) MetabolismMetabolism

B) Photosynthesis

C) Homeostasis

SomeReview

A) Metabolism

B)B) PhotosynthesisPhotosynthesis

C) Homeostasis

SomeReview

A) Metabolism

B) Photosynthesis

C) Homeostasis

SomeReview

No Problem…

(True or False)Cells Membranes are an outer barrier, which control what moves into and out of a cell.

A) True

B) False

A)A) TrueTrueB) False

Continue Learning

Great Job! Let’s move on to Diffusion!

A) TrueB)B) FalseFalse

SomeReview

Remember that…Remember that…• All living things are made of cells.

• Cells are always experiencing changing environments!

• Outside Change Inside Change

• Cells need to maintain balance….

REVIEW: What are cells?

Continue Learning

• Homeostasis is the process of keeping the inside of cells stable and healthy…

Regardless of the craziness going on around the cell!

INSIDE

OUTSIDE

REVIEW: What is homeostasis?

Continue Learning

Outside Inside

But sometimes changes

on the OUTSIDE force

the INSIDE to take control!Your body wants to

keep the inside and

outside balanced…

Re-TakeQuiz

Cells are mini-factories…

They have all of these parts inside that work together!

And they have gates on the outside to secure the property!

REVIEW: Cell Structure & Function

Continue Learning

Control Center

WorkersSecurity Gate

& Traffic Control

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• REMEMBER:REMEMBER:– Cell Membranes are the outer covering of cells.– Cell Membranes are semi-permeable… only some

things can enter and leave! – Cell Membranes are a made of 2 lipid layers with

channels!

REVIEW: Cell Membranes

Continue Learning

DIFFUSION: Introduction (0/5)

Watch the animation below.

Questions to Think About:Questions to Think About:1. What do you think the dots represent?2. How many dots start in the corner, compared to the rest of the box?3. How do the dots move? Which direction?4. What is the end result?

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• Particles (Molecules and Atoms) need to be balanced out…

DIFFUSION: Equilibrium (1/5)

This is NOT balanced! Notice all of the dye-particles are concentrated in the center and bottom of the water!

This IS balanced! Notice the dye particles are now spread out throughout

the water!

““Balance” = EquilibriumBalance” = Equilibrium

Re-TakeQuiz

Continue Learning

• Diffusion is the movement of particles from HIGH to LOW concentration, ultimately reaching equilibrium (without the use of ENERGY)!

DIFFUSION: Definition (2/5)

Particles are claustrophobic, they like to be spread out and have their own equal spaces!

BALANCED

Continue Learning

Re-TakeQuiz

Watch this animation again! Remember to Think About:Remember to Think About:

1. What do you think the dots represent?

2. How many dots start in the corner, compared to the rest of the box?

3. How do the dots move? Which direction?

4. What is the end result?

DIFFUSION: Animation (3/5)

The dots are particles (molecules or atoms).

There are way more dots/particles in the one corner, than the rest of

the box!

The dots/particles move from an area with MORE (High

Concentration), to an area with LESS (Lower Concentration)!

The dots/particles are evenly spread out and balanced (in

Equilibrium)!

Continue Learning

Re-Take Quiz

DIFFUSION: Example (4/5)Diffusion of Dye particles/molecules:

• Dye particles all start on top of water….HIGH Concentration!

• Dye particles need to be balanced…

• Dye particles move to areas with LOWER Concentration (fewer particles)

• Dye particles reach EQUILIBRIUM!

Continue Learning

Re-TakeQuiz

Start: There are tons of particles outside the cell, and none on the inside!

DIFFUSION: Example (4/5)

Particles move across the Cell Membrane from HIGH to LOW concentration!

End: The number of particles on the inside & outside of the cell is balanced! EQUILIBRIUM!

Start the Quiz

Re-TakeQuiz

____________ is the state in which there is balance, and any particles/molecules are evenly spread out.

A) Diffusion

B) Equilibrium

C) Isotropy

Quiz 2: Question #1/5____________ is the state in which there is balance, and any

particles/molecules are evenly spread out.

A) Diffusion

B)B) EquilibriumEquilibrium

C) Isotropy

NextQuestion

A)A) DiffusionDiffusion

B) Equilibrium

C) Isotropy

SomeReview

A) Diffusion

B) Equilibrium

C)C) IsotropyIsotropy

SomeReview

A) Diffusion

B) Equilibrium

C) Isotropy

SomeReview

No Problem…

Quiz 2: Question #2/5What is diffusion?...

A) The movement of particles from HIGH to LOW concentration to reach equilibrium.

B) The movement of particles from LOW to HIGH concentration to reach equilibrium.

C) A process which requires energy.

A)A) The movement of particles from HIGH to The movement of particles from HIGH to LOW concentration to reach equilibrium.LOW concentration to reach equilibrium.

C) A process which requires energy.D) I don’t know…

NextQuestion

B)B) The movement of particles from LOW to The movement of particles from LOW to HIGH concentration to reach equilibrium.HIGH concentration to reach equilibrium.

C) A process which requires energy.D) I don’t know…

SomeReview

C)C) A process which requires energy.A process which requires energy.D) I don’t know…

SomeReview

C) A process which requires energy.D)D) I don’t know…I don’t know…

SomeReview

No Problem…

What will happen with the purple molecules?

A) The purple molecules will remain where they are.

B) All of the purple molecules will move to the left side.

C) Some of the purple molecules will move to the left side

A) The purple molecules will remain where they are.

B) All of the purple molecules will move to the left side.

C)C) Some of the purple molecules Some of the purple molecules will move to the left side.will move to the left side.

NextQuestion

A)A) The purple molecules will remain where they are. The purple molecules will remain where they are. B) All of the purple molecules will move to the left side.C) Some of the purple molecules will move to the left

side.D) I don’t know…

SomeReview

A) The purple molecules will remain where they are. B)B) All of the purple molecules will move to the left All of the purple molecules will move to the left

side.side.C) Some of the purple molecules will move to the left

side.D) I don’t know…

SomeReview

A) The purple molecules will remain where they are. B) All of the purple molecules will move to the left side.C) Some of the purple molecules will move to the left

side.D)D) I don’t know…I don’t know…

SomeReview

No Problem…

Ewww!! Yoshi “lets one loose”! What will happen with this fart-smell & Why??

A) The fart-particles will stay around Yoshi because there is no energy to move them.

B) The fart-particles will spread out to reach equilibrium, making this whole room stinky!

C) The fart-particles will move from low to high concentration.

B) The fart-particles will spread out to reach equilibrium, B) The fart-particles will spread out to reach equilibrium, making this whole room stinky!making this whole room stinky!

LastQuestion

to the Last Question!

A) The fart-particles will stay around Yoshi because A) The fart-particles will stay around Yoshi because there is no energy to move them.there is no energy to move them.

SomeReview

C)C) The fart-particles will move from low to high The fart-particles will move from low to high concentration.concentration.

SomeReview

D) I don’t know…D) I don’t know…

SomeReview

No Problem…

There are 20 water molecules on the outside of the cell, and 5 water molecules on the inside of the cell. Which of the following statements is true?

A)There is a higher concentration of water inside the cell, than outside.

B) The cell is in equilibrium.

C) Water molecules will diffuse into the cell.

A) There is a higher concentration of water inside the cell, than outside.

B) The cell is in equilibrium. C) C) Water molecules will diffuse into the cell.Water molecules will diffuse into the cell. D) I don’t know…

Continue Learning

to the Osmosis!

A) There is a higher concentration of water inside the cell, A) There is a higher concentration of water inside the cell, than outside.than outside.

B) The cell is in equilibrium. C) Water molecules will diffuse into the cell. D) I don’t know…

SomeReview

B) The cell is in equilibrium.B) The cell is in equilibrium. C) Water molecules will diffuse into the cell. D) I don’t know…

SomeReview

B) The cell is in equilibrium. C) Water molecules will diffuse into the cell. D)D) I don’t know…I don’t know…

Continue Learning

No Problem…

Watch the animation below about a Red Blood Cell.

OSMOSIS: Introduction (0/4)

Questions to Think About:Questions to Think About:1. How is distilled water different from tap water?

2. What would cause the Red Blood Cell to explode?

3. How is this related to diffusion?

Continue Learning

Solutes are the “stuff”

dissolved in solvents…

OSMOSIS: Solutes & Solvents (1/4)

Solvents are the “stuff” that hold the solutes (usually

water)!

Most solvents can move across a cell membrane…

Most solutes cannot!

Continue Learning

Re-TakeQuiz

Osmosis is the movement of water from LOW solute concentration, to HIGH solute concentration (without the use of ENERGY)!

OSMOSIS: Definition (2/4)

Water molecules are great friends, they like to make sure solute particles are never lonely!

Particles move when

there’s imbalance!

Re-TakeQuiz

Continue Learning

OSMOSIS: Animation (3/4)

Watch the animation below about a Red Blood Cell.

Questions to Think About:Questions to Think About:1. How is distilled water different from tap water?

2. What would cause the Red Blood Cell to explode?

3. How is this related to diffusion?

Distilled water has NO solute particles in it… Tap water has a variety of solute particles in it!

HIGH solute concentration inside the Red Blood Cell, LOW solute concentration outside… WATER rushes into the cell!

Water is diffusing into the Red Blood Cell from HIGH water concentration to LOW water

concentration.

Continue Learning

Re-TakeQuiz

Your mom packs you some delicious, juicy strawberries in your lunch. You are devastated to find that strawberry-juice has leaked all over the inside of your lunch bag!

WHAT HAPPENED???

OSMOSIS: Example (4/4)

•The plastic baggy is semi-permeable… just like a cell membrane!

•Water (solvent) can pass through the baggy…

•You have HIGH water concentration inside your baggy, and LOW water concentration outside your baggy…

•Water leaves your baggy, and ruins your homework!

Re-TakeQuiz

StartQuiz

You add some Kool-Aid powder to some water. Which is the solute, and Which is the solvent?

A) The water is the solute, and the powder is the solvent.

B) The water is the solvent, and the powder is the solute.

C) Because both are made of molecules, they are both solutes.

You add some Kool-Aid powder to some water. Which is the solute, and Which is the solvent?

B)B) The water is the solvent, and the powder is the solute.The water is the solvent, and the powder is the solute.

Next Question

Quiz 3: Question #1/4You add some Kool-Aid powder to some water. Which is the solute, and Which is the solvent?

A)A) The water is the solute, and the powder is the solvent.The water is the solute, and the powder is the solvent.

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C)C) Because both are made of molecules, they are both Because both are made of molecules, they are both solutes. solutes.

Continue Learning

No Problem…

Osmosis is the movement of water from…

A) High to low solute concentration.

B) Low to high water concentration.

C) High to low water concentration.

C)C) High to low water concentration. High to low water concentration.

NextQuestion

A)A) High to low solute concentration.High to low solute concentration.

SomeReview

B)B) Low to high water concentration.Low to high water concentration.

SomeReview

Continue Learning

No Problem…

Gummy Bears are made of tons of sugar. What will happen if you place a Gummy Bear in a glass of distilled water?

A) Water will rush in, and the Gummy Bear will inflate.

B) Water will leave the Gummy Bear, and it will shrivel up.

C) Sugar will leave the Gummy Bear to establish balance.

Quiz 3: Question #3/4Gummy Bears are made of tons of sugar. What will happen

if you place a Gummy Bear in a glass of distilled water?

A)A) Water will rush in, and the Gummy Bear will inflate.Water will rush in, and the Gummy Bear will inflate.

Last Question

to the Last Question!

B) Water will leave the Gummy Bear, and it will shrivel B) Water will leave the Gummy Bear, and it will shrivel up.up.

SomeReview

C) Sugar will leave the Gummy Bear to establish C) Sugar will leave the Gummy Bear to establish balance.balance.

SomeReview

D) I don’t know…D) I don’t know…

SomeReview

No Problem…

You eat a bag of super salty potato chips for lunch. Salt cannot diffuse across your cell’s membranes. What will happen to your cells, & Why?

A) Your cells will explode…Because water will rush in towards the higher solute concentration.

B) Your cells will shrivel up…Because water will rush out towards the lower solute concentration.

C) Your cells will shrivel up…Because water will rush out towards the higher solute concentration.

D) Nothing will happen… Because the salt is on the outside of your cells.

Quiz 3: Question #4/4You eat a bag of super salty potato chips for lunch. Salt cannot diffuse

across your cell’s membranes. What will happen to your cells, & Why?

B) Your cells will shrivel up…Because water will B) Your cells will shrivel up…Because water will rush out towards the lower solute rush out towards the lower solute concentration.concentration.

C) Your cells will shrivel up…Because water will rush out towards the higher solute

concentration.

One Last Thing

Great Job! There’s just one

last thing…

A) Your cells will explode…Because water will A) Your cells will explode…Because water will rush in towards the higher solute rush in towards the higher solute concentration.concentration.

concentration.

Some Resources

Here’s some resources!

C) Your cells will shrivel up…Because water will C) Your cells will shrivel up…Because water will rush out towards the higher solute rush out towards the higher solute concentration.concentration.

SomeResources

concentration.

D) Nothing will happen… Because the salt is on D) Nothing will happen… Because the salt is on the outside of your cells.the outside of your cells.

Some Resources

Interested in some Diffusion &

Osmosis Fun??

Egg Osmosis

Other Activities

Need some more help??

Diffusion, Osmosis & Cell

Membranes

Back to Diffusion

Back to Osmosis

how do molecules move in and out of our cells?. introduction you will be: reviewing cell basics if...

quiz question

change cells

inside of cells stable

dont knowsome reviewsorry

false cells membranes

d i dont knowquiz

dna molecule cell organ

dont knowall

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