Day 2. The Cell Theory  All living organisms are made up of one or more cells  Cells are the basic unit of all living organisms  All cells come from.

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Presentation transcript:

Day 2

The Cell Theory  All living organisms are made up of one or more cells  Cells are the basic unit of all living organisms  All cells come from previously existing cells  The activity of an entire organism comes from the total activity of its independent cells

Does it have a nucleus? YESNO Does it have a chloroplast? YES NO

Mitochondrion Centriole Vesicle Cytoplasm Golgi Body Lysosome Flagellum Cell Membrane Smooth Endoplasmic Reticulum Ribosome Nucleus Rough Endoplasmic Reticulum

 Protective layer surrounding the cell  Allows entry and exit of certain molecules  Acts a boundary for water in cell

 Double walled organelle  Large surface area  Site of energy production  Sugar + Oxygen  Water + Carbon Dioxide + Energy

 Control Center of the Cell  Contains the DNA (deoxyribonucleic acid)  Tells the cell how to build proteins  Controls cellular reproduction

 Where proteins are built

 Transports chemicals between cells and within cells  Provides a large surface area for the organization of chemical reactions and synthesis  Smooth (no ribosomes)  Rough (have ribosomes)

 Modifies chemicals to make them functional  Secretes chemicals in tiny vesicles  Stores chemicals  May produce endoplasmic reticulum

 Forms spindle fibres to separate chromosomes during cell division

 Contains digestive enzymes to destroy organelles or cells

 Fluid in the cell  “salty” water full of all the chemicals and electrolytes needed for cell function

Chloroplast Cell Wall Vacuole

 Contains chlorophyll  Converts sunlight into sugar via photosynthesis

 Gives the cell strength

 Stores water, nutrients, other molecules  Regulates sugar in cell

 Pg 32 #1-3, 6-8

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