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All living things are composed of cells

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Presentation on theme: "All living things are composed of cells"— Presentation transcript:

1 The Animal Cell Key Concept: Eukaryotic cells contain membrane bound organelles
All living things are composed of cells Eukaryotic cells contain membrane-bound organelles

2 Cell Membrane/Plasma Membrane
Barrier to extra-cellular environment Allows nutrients in and wastes out Identifies the cell Receives messages from other cells

3 Nucleus Controls the cells activities
Contains the genetic material (DNA) Surrounded by a nuclear membrane

4 Nucleolus Manufactures ribosomes

5 Nuclear Membrane Keeps the DNA inside
Allows the RNA to pass into the cell

6 Cytoplasm Gel-like fluid that fills the cell
Breaks down some glucose for energy (glycolysis) – not much energy Filled with free-floating subunits

7 Mitochondria Metabolizes glucose for energy – provides a great deal of energy Has its’ own DNA Has a double membrane

8 Endoplasmic Reticulum
Two types of ER RER (rough endoplasmic reticulum) contains ribosomes Manufactures and transports proteins SER (smooth endoplasmic reticulum) has no ribosomes Manufactures and transports lipids

9 Ribosome Makes proteins Sometimes attached to RER
Sometimes free-floating in the cytoplasm

10 Golgi Apparatus Packages proteins Modifies proteins
Prepares them for export to the organism outside the cell

11 Vesicle Transports proteins to and from the Golgi apparatus

12 Lysosome Digests worn out organelles
Destroys infected or un-necessary cells Contains digestive enzymes

13 Centriole The centriole is found only in animal cells
It is involved in cell division

14 Plant Cells Plant cells have many of the same organelles as animals cells

15 Plant Cells Have 2 Extra Organelles
Outside the cell membrane, plants have a cell wall Plants have large central vacuoles Plants have chloroplasts to convert sunlight to glucose

16 Chloroplasts Use CO2, H2O and sunlight to produce Carbohydrates
Releases O2 Contains double membrane Has its’ own DNA

17 Chloroplast Chlorophyll does the work
Chlorophyll is located in the thylakoid stacks Thylakoid stacks are called granum

18 Shape and Support Made of cellulose (an indigestible form of carbohydrate) Found just outside the plasma membrane

19 Transport Into & Out of the Cell
Materials move from areas of high concentration to areas of low concentration This is called diffusion


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