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Transcript
Organelles
of the Plant
Cell
By: Valerie
Gutierrez
Plasma Membrane
 Consists of a phospholipid bilayer
 Controls molecules movement in and out of the
cell
 Cell to cell signaling
 Cell adhesion
Cell Wall
 Composed primarily of cellulose
 Provides structural support
Structure of Cellulose
Thomas A. NEWTON
Mitochondria
 Powerhouse of the cell
 Main site of ATP production
 Consists of an inner membrane and an outer membrane
 Cristae - foldings in the inner membrane
 Matrix – central space
 Intermembrane space – space between the membranes
 Contain their own DNA
Chloroplasts

Most characteristic organelles

Thylakoids – interconnected
membrane-limited sacs

Contain chlorophyll (green
pigment)

Contain their own DNA

Bounded by two bilayer
membranes

Carry out photosynthesis
Vacuoles
 Can occupy up to
80% of cell
 Stores water, ions,
and nutrients
 Degrades
macromolecules
 Functions in cell
elongation during
growth
 Maintains turgor in
cell
Endoplasmic Reticulum
 Smooth ER
 Lacks ribosomes
 Synthesizes fatty
acids and
phospholipids
Smooth Endoplasmic Reticulum
No ribosomes
 Rough ER
 Do not lack
ribosomes
 Synthesizes,
processes, and sorts
secreted proteins
Golgi Complex
 Series of flattened
membrane sacs
 Cis and trans side
 Processes, sorts,
and ships proteins to
where they need to
go
 “Post Office”
Trans
Cis
Nucleus
 Store cell’s DNA
 Coordinates
cell’s activities
 Nucleolus- manufactures ribosomes
 Nuclear Envelope- double membrane that
encloses contents of nucleus
References
Kimball, John W. (2000, November). Kimball’s Biology Pages. Retrieved September 23, 2003,
from http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/P/PlantCell.html
Carpi, Anthony. (1998-1999). The Cell. Retrieved September 23, 2003, from
http://web.jjay.cuny.edu/~acarpi/NSC/13-cells.htm
Plant Cell Organelles. (1994-2003). Retrieved September 23, 2003, from
http://www.cellsalive.com/cells/plntcell.htm
Plant Cell Anatomy. (2001-2003). Retrieved September 23, 2003, from
http://www.enchantedlearning.com/subjects/plants/cell/
Lodish, Berk, Matsudaira, Kaiser, Krieger, Scott, Zipursky, Darnell. (2003). Molecular Cell Biology.
New York: W.H. Freeman and Company.