Transport processes: Active and Passive

Primary active transport, also called direct active transport, directly uses metabolic energy to transport molecules across a membrane. Substances that are transported across the cell membrane by primary active transport include metal ions, such as Na+, K+, Mg2+, and Ca2+.



What are the 3 types of transport processes in a human cell?
Types of Transport
Simple diffusion – movement of small or lipophilic molecules (e.g. O2, CO2, etc.)
Osmosis – movement of water molecules (dependent on solute concentrations)
Facilitated diffusion – movement of large or charged molecules via membrane proteins (e.g. ions, sucrose, etc.)

What are transport processes in cells?
The processes that determine molecular movement across membranes are diffusion, pinocytosis, carrier-mediated transport and transcellular transport .

What are the 4 types of cell transport?

Cell transport can be classified as follows:

Passive Transport which includes. Simple Diffusion. Osmosis. Facilitated Diffusion.

Active Transport can involve either a pump or a vesicle. Pump Transport can be. primary. secondary. Vesicle Transport can involve. Exocytosis. Endocytosis which includes. Pinocytosis. Phagocytosis.