Types of Transport & the Cell Membrane. BIG IDEA Molecules like to go from high concentration to low concentration (they like to be equal) AB.

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Presentation transcript:

Types of Transport & the Cell Membrane

BIG IDEA Molecules like to go from high concentration to low concentration (they like to be equal) AB

1) Passive Transport = transport of substances into or out of the cell from an area of high concentration to an area of low concentration without using cell energy HIGH LOW HIGH LOW 3.What are the two types of transport? There are 2 ways molecules are transported in and out of the cell:

No Energy Required!!! High Low

HIGH LOW Passive Transport

Traveling with the Current!

Passive Transport a.Example: Diffusion b.Example: Osmosis c.Example: Facilitated Diffusion

2) Active Transport = the transport of substances into or out of the cell from an area of low concentration to an area of high concentration with the use of cell energy HIGH LOW HIGH LOW There are 2 ways molecules are transported in and out of the cell: 3.What are the two types of transport?

Energy Required! Low High

Active Transport HIGH LOW

Lots of Energy is Required!!!

Active (1) or Passive (2) Transport? HIGH LOW HIGH LOW Uses cell energy (ATP ) Does NOT use cell energy (ATP)

DIFFUSION -Prediction: Look at the picture. Do you think this is passive or active transport? Why? -Type of Transport: Passive Transport -Definition: movement of small solute particles from an area of high concentration to an area of low concentration without the use of energy

KEY POINTS - DIFFUSION WHAT IS MOVING? WHERE IS IT MOVING? DOES IT NEED ENERGY? DOES IT NEED PROTEINS?

Example of Diffusion

OSMOSIS -Prediction: Look at the picture. Do you think this is passive or active transport? Why? -Type of Transport: Passive Transport -Definition: movement of water molecules from an area of high concentration to an area of low concentration without the use of energy

KEY POINTS - OSMOSIS WHAT IS MOVING? WHERE IS IT MOVING? DOES IT NEED ENERGY? DOES IT NEED PROTEINS?

Stop-and-Jot: What is the difference between diffusion and osmosis?

FACILITATED DIFFUSION -Prediction: Look at the picture. Do you think this is passive or active transport? Why? -Type of Transport: Passive Transport -Definition: movement of large molecules(such as sugars and proteins) from an area of high concentration to an area of low concentration without the use of cell energy but with the assistance of channel proteins

KEY POINTS – Facilitated Diffusion WHAT IS MOVING? WHERE IS IT MOVING? DOES IT NEED ENERGY? DOES IT NEED PROTEINS?

Facilitated Diffusion

PASSIVE TRANSPORT BRAINPOP!

STOP-AND-JOT What is the difference between diffusion and facilitated diffusion?

ACTIVE TRANSPORT -Prediction: Look at the picture. Do you think this is passive or active transport? Why? -Type of Transport: Active Transport -Definition: movement of molecules from an area of low concentration to an area of high concentration with the use of energy and protein pumps

KEY POINTS – Active Transport WHAT IS MOVING? WHERE IS IT MOVING? DOES IT NEED ENERGY? DOES IT NEED PROTEINS?

Active Transport

SHOW WHAT YOU KNOW! What is the difference between facilitated diffusion and active transport?

ACTIVE TRANSPORT! BRAINPOP!

TIME TO PRACTICE!

WHO AM I? Please number your paper 1 - 5

WHO AM I? #1 I involve the transport of molecules from areas of high concentration to low concentration I do NOT use energy I mostly transport small molecules that can easily move across the cell membrane I do not need the help of membrane proteins HIGH LOW

WHO AM I? #2 I involve the transport of molecules from areas of high concentration to low concentration I do NOT use energy I mostly transport larger molecules that cannot easily move across the cell membrane (like sugars and proteins) I do need the help of membrane proteins HIGH LOW

WHO AM I? #3 I involve the transport of molecules from areas of low concentration to high concentration I do use energy I do need the help of membrane proteins HIGH LOW

WHO AM I? #4 I involve the transport of water molecules from areas of high concentration to low concentration I do NOT use energy I do not need the help of membrane proteins HIGH LOW

WHO AM I? #5 I am the cell organelle that is located on the outside of the cell I help the cell maintain homeostasis I control what enter and exits the cell! I use passive and active transport to move materials in and out of the cell