The cell membrane is partially permeable, to allow nutrients like glucose and oxygen to enter the cell, and for waste products (eg. CO2 and urea) to exit the cell. It does not hold the cell together; this is carried out in plant cells by a cellulose cells wall.
The cell membrane is selectively permeable.
The cell membrane is selectively permeable.
the cell membrane
protein binds to a particle and uses energy to move through the cell membrane
found on the cell membrane.
A cell membrane is also known as a plasma membrane or cytoplasmic membrane. The cell membrane separates the interior of a cell from its outside environment. The main function of a cell membrane is to protect the cell from its surroundings.
the cell membrane
active transport
Facilitated diffusion uses proteins to move a molecule across the cell membrane without energy.
Active transport
Facilitated diffusion uses proteins to move a molecule across the cell membrane without energy.
the cell membrane