Biology

Types of Transport

Passive

• Does not require energy
• High concentration to low concentration
• Down concentration gradient

• Diffusion
• Osmosis
• Facilitated Diffusion

Active

• Requires energy (ATP)
• Low concentration to high concentration
• Across/up concentration gradient

• Protein Carrier & Pumps
• Bulk Transport

-Exocytosis

-Endocytosis

*Pinocytosis

*Phagocytosis

ACTIVE TRANSPORT

Protein Pumps/Carriers: when proteins use energy to move molecules across the cell membrane (across/up) uses ATP to make something happen

Bulk Transport: moving a large molecule or large amounts of molecule across cell membrane using vesicles

-Exocytosis: when molecules move out of the cell, vesicle will join with cell membrane to move it out

-Endocytosis: opposite of exocytosis when molecules come into the cell

• Pinocytosis: when liquid is entering the cell (endocytosis) cell drinking
• Phagocytosis: taking solids in, using endocytosis (cell eating)