Parts of the Cell Membrane Outside of cell

Parts of the Cell Membrane Outside of cell Proteins Carbohydrate chains Cell membrane Inside of cell (cytoplasm) Go to Section: Protein channel Double Fat Layer

Homeostasis • Maintenance of a stable internal condition • Balance

Vocab • Vesicle: – Membrane-covered compartments that forms when part of the cell membrane surrounds an object and pinches off

Diffusion

Definition: Movement of small particles from an area of high concentration to an area of low concentration, like oxygen Diffusion

Definition: Movement of small particles from an area of high concentration to an area of low concentration, like oxygen Diffusion High Low

Definition: Movement of small particles from an area of high concentration to an area of low concentration, like oxygen Diffusion High Low

Definition: Movement of small particles from an area of high concentration to an area of low concentration, like oxygen Diffusion Requires NO ATP (energy), moves only small particles High Low

Definition: Movement of small particles from an area of high concentration to an area of low concentration, like oxygen Osmosis: the diffusion of water Diffusion Requires NO ATP (energy), moves only small particles High Low

Passive Transport

Definition: the movement of medium particles from an area of high concentration to an area of low concentration through a protein channel Passive Transport

Definition: the movement of small & large particles from an area of high concentration to an area of low concentration through a protein channel Passive Transport Requires NO ATP (ENERGY)

Just like diffusion but through a protein Definition: the movement of medium particles from an area of high concentration to an area of low concentration through a protein channel Passive Transport Requires NO ATP (ENERGY)

Definition: the movement of med. particles from an area of high concentration to an area of low concentration Just like diffusion but through a protein High Passive Transport Requires NO ATP (ENERGY) Low

Definition: the movement of med. particles from an area of high concentration to an area of low concentration Just like diffusion but through a protein High Passive Transport Requires NO ATP (ENERGY) Low

Active Transport

Definition: the movement of medium particles from an area of low concentration to an area of high concentration through a protein channel Active Transport

Definition: the movement of med. particles from an area of low concentration to an area of high concentration through protein channel Active Transport Requires ATP (ENERGY)

Similar to Passive Transport but requires energy Definition: the movement of med. particles from an area of low concentration to an area of high concentration through a protein channel Active Transport Requires ATP (ENERGY)

Definition: the movement of med. particles from an area of low concentration to an area of high concentration Similar to Passive Transport but requires energy Low Active Transport Requires ATP (ENERGY) High

Definition: the movement of sm. & lg. particles from an area of low concentration to an area of high concentration Similar to Passive Transport but requires energy Low Active Transport Requires ATP (ENERGY) Energy High

ENDOCYTOSIS

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle Step 1: the cell comes into contact with a particle

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle Step 1: the cell comes into contact with a particle

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle Step 1: the cell comes into contact with a particle Step 2: the cell membrane begins to wrap around the particle

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle Step 1: the cell comes into contact with a particle Step 2: the cell membrane begins to wrap around the particle

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle Step 1: the cell comes into contact with a particle Step 2: the cell membrane begins to wrap around the particle Step 3: once the particle is completely surrounded, a vesicle pinches off

ENDOCYTOSIS Definition: the cell taking in particles by surrounding the particle and enclosing it in a vesicle Step 1: the cell comes into contact with a particle Step 2: the cell membrane begins to wrap around the particle Step 3: once the particle is completely surrounded, a vesicle pinches off

Endocytosis

EXOCYTOSIS

EXOCYTOSIS Definition: Vesicles formed by the Golgi carry particles to the cell membrane to be removed

EXOCYTOSIS Definition: Vesicles formed by the Golgi or ER carry particles to the cell membrane to be removed Step 1: large particles that must leave the cell are packaged in vesicles

EXOCYTOSIS Definition: Vesicles formed by the Golgi or ER carry particles to the cell membrane to be removed Step 1: large particles that must leave the cell are packaged in vesicles

EXOCYTOSIS Definition: Vesicles formed by the Golgi or ER carry particles to the cell membrane to be removed Step 1: large particles that must leave the cell are packaged in vesicles Step 2: the vesicle travels to the cell membrane and fuses with it

EXOCYTOSIS Definition: Vesicles formed by the Golgi or ER carry particles to the cell membrane to be removed Step 1: large particles that must leave the cell are packaged in vesicles Step 2: the vesicle travels to the cell membrane and fuses with it

EXOCYTOSIS Definition: Vesicles formed by the Golgi or ER carry particles to the cell membrane to be removed Step 1: large particles that must leave the cell are packaged in vesicles Step 2: the vesicle travels to the cell membrane and fuses with it Step 3: the cell release the particles into its environment

EXOCYTOSIS Definition: Vesicles formed by the Golgi or ER carry particles to the cell membrane to be removed Step 1: large particles that must leave the cell are packaged in vesicles Step 2: the vesicle travels to the cell membrane and fuses with it Step 3: the cell release the particles into its environment

Review Transportation Through a Membrane • • • Diffusion Osmosis Facilitated Diffusion Active Transport Endocytosis Exocytosis