Diffusion Osmosis Active Transport What is the other

What is the other name for the Cell Membrane? • Fluid Mosaic Model

Passive Transport • Requires no energy • Flows “downhill” from an area of higher

Diffusion 1. Diffusion requires no energy 2. It is the movement of molecules from

Facilitated Diffusion • Facilitated Diffusion uses a membrane protein to get molecules across the

Osmosis • Osmosis is the movement of water across a semi permeable membrane •

Active Transport • Active transport requires energy • Moves molecules from low concentration to

Active Transport • Active transport also includes endocytosis and exocytosis • Endocytosis is when

Slides: 30

Download presentation

Diffusion, Osmosis, & Active Transport

What is the other name for the Cell Membrane? • Fluid Mosaic Model

Passive Transport • Requires no energy • Flows “downhill” from an area of higher concentration to an area of lower concentration.

Diffusion 1. Diffusion requires no energy 2. It is the movement of molecules from a high concentration to a low concentration

Diffusion

Facilitated Diffusion • Facilitated Diffusion uses a membrane protein to get molecules across the membrane • It is still diffusion so it requires no energy and moves from high to low concentration

Facilitated Diffusion

Osmosis • Osmosis is the movement of water across a semi permeable membrane • Osmosis requires no energy

Osmosis

Hypertonic Solution

Hypotonic Solution

Types of Transport

Active Transport • Active transport requires energy • Moves molecules from low concentration to high concentration • Requires use of special membrane proteins

Active Transport • Active transport also includes endocytosis and exocytosis • Endocytosis is when molecules are brought in to the cell through movement of the membrane • Exocytosis is when molecules are pushed out of the cell due to movement of the membrane

Active Transport

Na-K Ion Pump (Active)

Endocytosis

Endocytosis - Pinocytosis

Endo & Exo Cytosis

Exocytosis