1 Cell Interactions With The Environment
Objectives
- Body Fluids and Compartments
- Transport Across the Plasma Membrane
- Passive Transport
- Active Transport
Interactive Activities
Critical Thinking Questions
Learning Summary
- Passive transport is a method of transporting material that does not require energy.
- Active transport is the method of transporting material that requires energy.
- Endocytosis is a type of active transport that moves substances, including fluids and particles, into a cell.
- Exocytosis is a process of passing material out of a cell.
- Tonicity is the amount of solute in a solution.
- Diffusion is a passive process of transport of low-molecular weight material down its concentration gradient.
