Presentation is loading. Please wait.

Presentation is loading. Please wait.

CELL TRANSPORT AND DIFFUSION

Published byめぐの おまた Modified over 6 years ago

Similar presentations

Presentation on theme: "CELL TRANSPORT AND DIFFUSION"— Presentation transcript:

1 CELL TRANSPORT AND DIFFUSION

2 What is diffusion? When molecules move from an area where there are many of them, to an area where there are fewer of them Ex molecules of food coloring spreading out in the beakers This happens in liquids and gases Ex. spraying perfume It is a form of passive transport Does not need to use cell energy to enter the cell

3 Diffusion continued… When the molecules are equally or evenly spread out, this is called EQUILIBRIUM EQUAL amounts = Equilibrium The molecules move until they reach equilibrium, and they keep moving to maintain equilibrium

4 Diffusion into a cell Diffusion into a cell has to cross this important barrier: _______________________ Cell membranes are selectively permeable SELECTS (chooses) what to let in Water is necessary for all life and cells. How does it enter across the cell membrane? OSMOSIS! It is the diffusion of water across a cell membrane

Download ppt "CELL TRANSPORT AND DIFFUSION"

Similar presentations

Moving Cellular Materials Chapter 3 Notes. Cell Membrane Controls what moves into and out of cells. Controls what moves into and out of cells. Membrane.

Moving Cellular Materials Chapter 3 Notes. Cell Membrane Controls what moves into and out of cells. Controls what moves into and out of cells. Membrane.
Moving Cellular Materials Pg

Moving Cellular Materials Pg
Cell Transport The movement of molecules can be either passive (no energy) or active (needs energy) depending upon the membrane structure and concentration.

Cell Transport The movement of molecules can be either passive (no energy) or active (needs energy) depending upon the membrane structure and concentration.
Passive Transport Guiding Questions Answers

Passive Transport Guiding Questions Answers
Active and Passive Transport. Passive Transport Movement of substance through the cell membrane without the input of energy Three types – Diffusion –

Active and Passive Transport. Passive Transport Movement of substance through the cell membrane without the input of energy Three types – Diffusion –
The Cell and its Environment: The processes behind the movement of substances in and out of cells.

The Cell and its Environment: The processes behind the movement of substances in and out of cells.
Passive Transport Section 4.1.

Passive Transport Section 4.1.
Diffusion and Osmosis Notes Objective: You will be able to explain diffusion and osmosis and give an example for each one. Itinerary: 1.PowerPoint (definitions)

Diffusion and Osmosis Notes Objective: You will be able to explain diffusion and osmosis and give an example for each one. Itinerary: 1.PowerPoint (definitions)
Let’s look at one example involving osmosis. Osmosis is the diffusion of water across a semi permeable membrane such as a cell membrane. A semi permeable.

Let’s look at one example involving osmosis. Osmosis is the diffusion of water across a semi permeable membrane such as a cell membrane. A semi permeable.
Cell Transport Osmosis and Diffusion.  Particles in constant motion  Run into each other and randomly spread out  Particles move from an area of high.

Cell Transport Osmosis and Diffusion.  Particles in constant motion  Run into each other and randomly spread out  Particles move from an area of high.
Types of Transport Review. The movement of particles against the direction of diffusion requiring cell energy. ACTIVE TRANSPORT.

Types of Transport Review. The movement of particles against the direction of diffusion requiring cell energy. ACTIVE TRANSPORT.
Cellular Transport Test Review. What does this picture represent??

Cellular Transport Test Review. What does this picture represent??
Aim: How do Osmosis and Diffusion compare? DN: Explain the difference between passive and active transport. HW: Page 199 #33-34.

Aim: How do Osmosis and Diffusion compare? DN: Explain the difference between passive and active transport. HW: Page 199 #33-34.
DIFFUSION AND OSMOSIS. Objective: I will apply my knowledge of osmosis and diffusion to explain my lab observations. Drill: What do you think happens.

DIFFUSION AND OSMOSIS. Objective: I will apply my knowledge of osmosis and diffusion to explain my lab observations. Drill: What do you think happens.
Movement of Materials Through The Cell Membrane For a cell to maintain its internal environment, (i.e., achieve homeostasis) it has to be selective in.

Movement of Materials Through The Cell Membrane For a cell to maintain its internal environment, (i.e., achieve homeostasis) it has to be selective in.
How does diffusion through the cell membrane lead to homeostasis?

How does diffusion through the cell membrane lead to homeostasis?
Diffusion & Osmosis. Diffusion Diffusion The movement of molecules from an area in which they are highly concentrated to an area in which they are less.

Diffusion & Osmosis. Diffusion Diffusion The movement of molecules from an area in which they are highly concentrated to an area in which they are less.
Cellular Transport Section 7.3 How cells move or transport the stuff they want into the cell & get the stuff they don’t want out! Page 208 – “Think About.

Cellular Transport Section 7.3 How cells move or transport the stuff they want into the cell & get the stuff they don’t want out! Page 208 – “Think About.
How does the process of diffusion and the structure of the cell membrane help the cell maintain homeostasis?

How does the process of diffusion and the structure of the cell membrane help the cell maintain homeostasis?
AIM: How does the process of diffusion and the structure of the cell membrane help the cell maintain homeostasis? DN: Can all substances move through.

AIM: How does the process of diffusion and the structure of the cell membrane help the cell maintain homeostasis? DN: Can all substances move through.

Similar presentations

Ads by Google