Diffusion or if the molecules are too large they go through the transport proteins.
When molecules are actively leaving and entering cells, this process is called active transport. It is the only way of transportation that involves energy.
Active Transport.
plants "pipes" that transports sugar molecules are called phloem
Some molecules are too large to pass through the cell membrane without transport proteins.
carrier molecules
Endocytosis; bulk transport into the cell.
The large intestines, or colons to be specific, transport digested food molecules into the blood stream
Diffusion or if the molecules are too large they go through the transport proteins.
Large molecules such as glucose that cannot cross the phospholipid bilayer can still move across the membrane through transport proteins by active transport. Active transport uses energy to move molecules the bilayer.
it is called passive transport
Transport proteins and carrier proteins
Macromolecules.
cell wall
This process is called active transport.
When molecules are actively leaving and entering cells, this process is called active transport. It is the only way of transportation that involves energy.
Active Transport.