No energy is used [High]  [Low] (it’s the natural flow) This means it goes down a concentration gradient.

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Presentation transcript:

No energy is used [High]  [Low] (it’s the natural flow) This means it goes down a concentration gradient

What are the three types of passive transport? 1. Diffusion 2. Osmosis 3. Facilitated Diffusion

Diffusion [High]  [Low]

Osmosis

Facilitated Diffusion + CH 2 OH OH

Energy is used [Low]  [High] This means it goes up or against a concentration gradient

What are the three types of active transport? 1. Protein pumps 2. Endocytosis 3. Exocytosis

Protein Pumps store Protein Pumps: proteins use energy to pull or pump materials into or out of the cell to stockpile or store substances the cell needs

Different Types of Membrane Proteins (page 126) TRANSPORTERSRECEPTORSENZYMES SIGNAL/ RECOGNITION

Different Types of Membrane Proteins (page 126) signal/recognition Enzymes receptor transporter

When a particle is engulfed into the cell. 2 types 1.Phagocytosis: When a cell wraps part of its membrane around a large particle forming a “pocket” or vesicle 2.Pinocytosis: The same process, but with smaller particles or liquids Endocytosis

1.A vesicle carrying a substance 2.fuses with the cell membrane 3.and releases the substance Exocytosis