Presentation is loading. Please wait.

Presentation is loading. Please wait.

Facilitated Diffusion

Published byEbru Ceren Modified over 5 years ago

Similar presentations

Presentation on theme: "Facilitated Diffusion"— Presentation transcript:

1 Facilitated Diffusion
Active transport Facilitated Diffusion Active Transport Diffusion ATP Passive Transport

2 Active Transport Does this kayaker need to spend his energy in order to move?

3 Active Transport Defined: Molecules move from a LOW to a HIGH concentration Against (up) the concentration gradient ATP energy opens/closes protein channel ATP = Adenosine Triphosphate Acts like a pump ATP

4 Active Transport Video

5 Contractile vacuole of a Paramecium
The contractile vacuole pumps out the excess water. This is an example of active transport. Water diffuses into the Paramecium… . . . . . . . . . . . . . . . . . . . . . . Paramecium . . . . . . . . . . . Contractile vacuole . . . . . . . . . . . . . . . . . Paramecia live in watery environments… Lets zoom in… The contractile vacuole… contracts… to squirt excess water out If too much water diffuses into the Paramecium, it could burst and die… . . . . . . . Very similar to a bilge on a boat . . . . . . . . . . .

6 Endocytosis Endocytosis: Process in which the plasma membrane takes in substances (2 types) 1) Phagocytosis: when a cell engulfs a solid particle WBCs are called phagocytes 2) Pinocytosis: when a cell engulfs a liquid particle

7 Endocytosis & the lysosome
The bacteria is engulfed by phagocytosis The bacteria is placed inside a lysosome are destroyed

8 Endocytosis Endocytosis: Process in which the plasma membrane takes in substances (2 types) 1) Phagocytosis: when a cell engulfs a solid particle WBCs are called phagocytes 2) Pinocytosis: when a cell engulfs a liquid particle Unfortunately, viruses can also enter our cells this way receptor virus virus virus virus DNA

9 Exocytosis Defined: Process when substances are expelled from the cell
Proteins, nutrients, and waste exit by exocytosis Vesicle carry & release objects through the plasma membrane

10 Review How are active and passive transport different? Similar?
Which molecule powers active transport? How are endo- and exocytosis similar? Different? Which cell part controls active transport? Once inside a cell, what actually kills bacteria that have been swallowed by endocytosis? During exocytosis, which organelle fuses with the cell membrane? What are the types of endocytosis?

Download ppt "Facilitated Diffusion"

Similar presentations

Active Transport Ch 8. It is possible for particles to travel in the reverse direction across the membrane and have particles travel from an area of ______.

Active Transport Ch 8. It is possible for particles to travel in the reverse direction across the membrane and have particles travel from an area of ______.
Movement through the channel

Movement through the channel
1 ACTIVE TRANSPORT ACROSS A MEMBRANE. Overview of Active Transport Active Transport 1. Carrier Protein 2. Endocytosis3. Exocytosis.

1 ACTIVE TRANSPORT ACROSS A MEMBRANE. Overview of Active Transport Active Transport 1. Carrier Protein 2. Endocytosis3. Exocytosis.
Active Transport pp. 67 to 71. We know that passive transport involves NO energy, but.... As living beings, we NEED energy to sustain life processes.

Active Transport pp. 67 to 71. We know that passive transport involves NO energy, but.... As living beings, we NEED energy to sustain life processes.
Passive and Active Transport

Passive and Active Transport
Active Transport Requires use of energy because it does not happen naturally through diffusion or facilitated diffusion. Requires a carrier protein* that.

Active Transport Requires use of energy because it does not happen naturally through diffusion or facilitated diffusion. Requires a carrier protein* that.
ACTIVE TRANSPORT Energy Used to Move Cellular Materials.

ACTIVE TRANSPORT Energy Used to Move Cellular Materials.
No energy is used [High]  [Low] (it’s the natural flow) This means it goes down a concentration gradient.

No energy is used [High]  [Low] (it’s the natural flow) This means it goes down a concentration gradient.
ACTIVE TRANSPORT. LEARNING GOALS We need to understand the basic process of transport across a plasma membrane. We are learning... To understand the difference.

ACTIVE TRANSPORT. LEARNING GOALS We need to understand the basic process of transport across a plasma membrane. We are learning... To understand the difference.
Cell Transport Membranes Structure and Function. Membrane Structure Phospholipid Bi-layer Phospholipid Bi-layer Contains Different Types of Proteins Contains.

Cell Transport Membranes Structure and Function. Membrane Structure Phospholipid Bi-layer Phospholipid Bi-layer Contains Different Types of Proteins Contains.
Types of Cellular Transport  Passive Transport  Does NOT require energy cell doesn’t use energy 1.Diffusion 2.Facilitated Diffusion 3.Osmosis  Active.

Types of Cellular Transport  Passive Transport  Does NOT require energy cell doesn’t use energy 1.Diffusion 2.Facilitated Diffusion 3.Osmosis  Active.
Facilitated Diffusion and Active Transport. Facilitated Diffusion Many molecules and ions need special protein channels to pass through the cell membrane.

Facilitated Diffusion and Active Transport. Facilitated Diffusion Many molecules and ions need special protein channels to pass through the cell membrane.
Facilitated Diffusion Active Transport

Facilitated Diffusion Active Transport
Do Now Use you notes to help you answer the questions. There is a quiz on this NEXT CLASS!

Do Now Use you notes to help you answer the questions. There is a quiz on this NEXT CLASS!
Active Transport. Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP.

Active Transport. Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP.
Cell Transport Biology Unit 4 Notes #4 (Section 3.5)

Cell Transport Biology Unit 4 Notes #4 (Section 3.5)
Active Transport.

Active Transport.
ACTIVE TRANSPORT This lesson meets the following DoE Specific Curriculum Outcome for Biology 11: 314-1, 314-3, 314-8.

ACTIVE TRANSPORT This lesson meets the following DoE Specific Curriculum Outcome for Biology 11: 314-1, 314-3,
Cell Membrane What is it? – Barrier that separates cell from external environment – Composed of two phospholipid layers Other molecules are embedded in.

Cell Membrane What is it? – Barrier that separates cell from external environment – Composed of two phospholipid layers Other molecules are embedded in.
Active vs. Passive Transport FA Learning Goal: Compare and contrast active and passive transport.

Active vs. Passive Transport FA Learning Goal: Compare and contrast active and passive transport.

Similar presentations

Ads by Google