Cell Wall and Cell Membrane
• By :
Arnulfo
Lawrence
Xin
Guadalupe
Cell Wall
•The cell wall is mainly made
out of cellulose.
• The cell wall functions to
protect the cell and give it its
shape like for a plant the cell
wall helps it stand as it grows.
•The cell walls mechanism is to
act as a pressure vessel
preventing over-expansion
when water enters the cell.
Cell Membrane
• The cell membrane is a
flexible boundary between
the cell and its
environment, to allow a
steady supply of nutrients
to come into the cell no
matter what the external
conditions are.
• One mechanism for the
cell membrane is selective
permeability, a process in
which a membrane allows
some molecules to pass
through keeping others
out.
Sources
• www.cellsalive.com
• www.biology.arizona.edu/cell_bio/cell_bio.
html