Presentation is loading. Please wait.

Presentation is loading. Please wait.

Active Transport. Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP.

Published byBeverly Holt Modified over 9 years ago

Similar presentations

Presentation on theme: "Active Transport. Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP."— Presentation transcript:

1 Active Transport

2 Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP

3 Transport of Large Molecules Bulk transport brings in or takes out large molecules such as food, water, or solids ▫Endocytosis (in) ▫Exocytosis (out)

4 Endocytosis: Phagocytosis Engulfing large particles of food Cell surrounds food Food is enclosed in a vesicle and taken into cell

5 Endocytosis: Pinocytosis Like phagocytosis, except liquid is being taken in

6 Receptor-mediated Endocytosis Molecule binds to receptor protein ▫specific shapes! Protein-molecule migrates to coated pit Pit pinches off, forms a vacuole Receptor protein migrates back to membrane

7 Exocytosis Substance is contained within vesicle Vesicle meets up with inner face of cell membrane, fuses Contents are expelled to outside

8 Active Transport in Action

Download ppt "Active Transport. Moves molecules from low to high concentration AGAINST a concentration gradient Requires energy, so cell must use ATP."

Similar presentations

ACTIVE TRANSPORT. Moving substances against their concentration gradient Cost energy!!! Types of Active Transport  Sodium-potassium pumps  Endocytosis.

ACTIVE TRANSPORT. Moving substances against their concentration gradient Cost energy!!! Types of Active Transport  Sodium-potassium pumps  Endocytosis.
ACTIVE TRANSPORT Chapter 5 pg. 103-106. Active Transport Requires energy! Molecules move from an area of low concentration to an area of high concentration.

ACTIVE TRANSPORT Chapter 5 pg Active Transport Requires energy! Molecules move from an area of low concentration to an area of high concentration.
Lesson Overview 7.3 Cell Transport.

Lesson Overview 7.3 Cell Transport.
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.
Simple Diffusion http://images.google.com/imgres?imgurl=http://www.esu7.org/~lweb/gifs/cells.jpg&imgrefurl=http://www.esu7.org/~lweb/Lakeview/science/sea.htm&usg=__WRoEbPFHEL_0_lRaf6ch87l7Vfg=&h=214&w=500&sz=15&hl=en&start=1&um=1&tbnid=HB_KYZJxlxHSHM:&tbn

Simple Diffusion
Active Transport Overview Sometimes cells need to move substances from low concentration to high concentration These substances move up the concentration.

Active Transport Overview Sometimes cells need to move substances from low concentration to high concentration These substances move up the concentration.
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.
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
Lipids. Macromolecules are large organic carbon compounds Carbohydrates (Cell Energy) Proteins (Enzyme Activity) Nucleic Acids (Gene Expression/ Cell.

Lipids. Macromolecules are large organic carbon compounds Carbohydrates (Cell Energy) Proteins (Enzyme Activity) Nucleic Acids (Gene Expression/ Cell.
Active Transport Cell Membrane Pumps and Vesicle Transport.

Active Transport Cell Membrane Pumps and Vesicle Transport.
Active Transport Joohee Kim Sec. III IB Biology. Active Transport  Active transport is the pumping of molecules against their concentration gradient.

Active Transport Joohee Kim Sec. III IB Biology. Active Transport  Active transport is the pumping of molecules against their concentration gradient.
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,
Passive vs. Active Transport. Passive Transport Does NOT require energy Moves substances from higher to lower concentration.

Passive vs. Active Transport. Passive Transport Does NOT require energy Moves substances from higher to lower concentration.
TRANSPORT ACROSS CELL MEMBRANES Endocytosis and Exocytosis.

TRANSPORT ACROSS CELL MEMBRANES Endocytosis and Exocytosis.
Passive vs Active Transport Osmosis, Diffusion, and Energy.

Passive vs Active Transport Osmosis, Diffusion, and Energy.
Facilitated Diffusion

Facilitated Diffusion
3.6 How Do Diffusion And Osmosis Affect Transport Across The Plasma Membrane? Simple diffusion through the phospholipid bilayer Fig. 3-7a Simple diffusion.

3.6 How Do Diffusion And Osmosis Affect Transport Across The Plasma Membrane? Simple diffusion through the phospholipid bilayer Fig. 3-7a Simple diffusion.
Active Transport Sometimes cells must move against the concentration gradient- low concentration to areas of high –From areas of low concentration to.

Active Transport Sometimes cells must move against the concentration gradient- low concentration to areas of high –From areas of low concentration to.

Similar presentations

Ads by Google