Post on 30-Dec-2015
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Cell Membrane (also called Plasma Membrane)
• All cells have one!• Is the outer most membrane of cell • It defines the boundary of the cell • Controls the ______________ of
substances into and out of the cell.• Formed of a double layer of
_______________ molecules with embedded proteins
http://library.thinkquest.org/12413/structures.html
movement
phospholipid
Membrane Structure - The __________________ model • membranes are fluids with a mosaic of proteins embedded within
the membrane._____________________ – form the basic structure of the membrane• contain glycerol, two fatty acids, and a phosphate group. • The phosphate group is polar (hydrophilic), enabling it to interact
with water. • The fatty acid tails are nonpolar (hydrophobic) and do not interact
with water.
Cell MembraneCell MembraneSection 7.2Section 7.2
Fluid-mosaic
phospholipids
Cell Wall• Only found in ______ cells
and prokaryotic Cells (the bacteria)
• Supports, gives shape to, & ___________ cell
http://library.thinkquest.org/12413/structures.html
plant
protects
Nucleus
• Is usually a large central structure.
• Separated from cytoplasm by nuclear membrane
• Contains genetic material – _________
• Directs all cell ________
DNA
activity
Chromosomes• Found in the _________• Composed of _______• Contain instructions for
inherited traits & characteristics
http://library.thinkquest.org/12413/structures.html
nucleus
DNA
Cytoplasm
• Gel-like mixture/substance ____________ the cell.
• Contains nutrients and chemicals for cell activities; many metabolic activities take place in the cytoplasm.
inside
Endoplasmic Reticulum• ___________ materials around
in the cellSmooth type: • lacks ribosomes Rough type (pictured): • have ribosomes embedded in
surface
http://library.thinkquest.org/12413/structures.html
transports
Ribosomes• Make __________
(protein synthesis)• Found on the _________
_____________________& also freely floating throughout the cell
http://library.thinkquest.org/12413/structures.html
proteins
endoplasmic reticulumrough
Mitochondria• Produces energy in the form
of - through cellular respiration in the mitochondria.
• ________ is the main energy source that cells use for most of their work
• ATP = Adenosine triphosphate.
http://library.thinkquest.org/12413/structures.html
ATP
ATP
Golgi Apparatus (Body)
• __________ and transports chemical products made in the cell to their next destinations
http://library.thinkquest.org/12413/structures.html
stores
Lysosome• Contain digestive
__________ to help destroy harmful bacteria and rid the cell of damaged organelles
http://library.thinkquest.org/12413/structures.html
enzymes
Vacuoles• Membrane-bound sacs
for storage, digestion, and waste removal
• They are small in _________cells;
• In plant cells, the vacuole is ___________ and fills most of the cell.
http://library.thinkquest.org/12413/structures.html
animal
large
Chloroplast
• Only found in ________ cells
• Contains the green pigment ___________
• The place in a plant cell where ______________ takes place (changes light energy to energy that can be used by the organism.)
http://library.thinkquest.org/12413/structures.html
plant
Chlorophyll
photosynthesis