CELL THEORY
1. All living things are composed of cells.2. The cell is the basic unit of structure and
function in living things. 3. All cells arise from preexisting cells.
organelles
• little “organs” within the cell
• Carry out special functions
• We need to know:– Cell Membrane– Cytoplasm– Nucleus– Mitochondria– Ribosomes
CELL ORGANELLSOrganelles are structures inside the cell that perform specific
jobs.
Some functions of organelles:
Transport of materials
Information storage
Protein building
Waste disposal
Energy capture and release
Cytoplasm
• Transports materials within the cell
Cell Membrane
• Protects cell• Controls entry and exit
of substances• Nutrients in• Wastes out
Cell membrane- structure
Click image for video clp
Nucleus
• Command and control
• Information storage
Closing Dec. 01, 2015
• The command and control center of the cell is called ……………………………
• The ……………………………… protects the cell and controls entry and exit.
CELL ORGANELLS Dec.2
Organelles are structures inside the cell that perform specific
jobs.
Some functions of organelles:
Transport of materials
Information storage
Protein building
Waste disposal
Energy capture and release
Mitochondria
• "Powerhouse of the cell" – produces ATP (energy molecule)
• contains enzymes for cell respiration process
• active cells have many mitochondria.
for example: muscle cells sperm
cells
Ribosome
• Ribosomes build proteins
Synthesize = build, make, produce
Ribosome at work – protein synthesis
Vacuole
• Stores and digests food in single-celled organisms
• Serves as Water pump to maintain homeostasis in plants
• What do multicellular organisms have that single celled organisms do not have?
tissues, organs, organ systems
Compare Plant and Animal Cells
Closing Dec. 02, 2015
• One thing I learned about cell organelles is ……………………………….