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Structure and Function of Cells

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Presentation on theme: "Structure and Function of Cells"— Presentation transcript:

1 Structure and Function of Cells
Organelle – “little organ” these are the structures found in cells that carry out the activities of life within the cell

2 Cell Membrane Outer boundary of cell Protects the cell
Controls what enters and leaves the cell Also called – plasma membrane Is semi-permeable

3 Cell Wall Only found in plant cells Adds protection and support
Made of cellulose. Allows water and dissolved substances to pass through.

4 The Nucleus Controls most activities in the cell
Contains all genetic information in the form of DNA.

5 Nucleolus Contained in the nucleus and is responsible for producing ribosomes. Nucleolus

6 Chromatin DNA – Inside the nucleus and contains the blueprint or genes of the organism. Nucleus

7 Cytoplasm Clear fluid within cell that contains all organelles
Moves materials throughout the cell

8 Endoplasmic Reticulum
Series of folded membranes that form sacs or tubes Rough ER has ribosomes attached Transports chemicals between cells and within cells provides a large surface area for the organization of chemical   - reactions and synthesis

9 Ribosomes Transports materials between the cytoplasm and nucleus
Makes proteins in the cell May be free in cytoplasm or attached to ER Proteins are vital to life- all cells must produce them

10 Golgi Bodies Saclike membranes used for storing/ packaging of chemicals Cells that make saliva or mucus have many Golgi bodies

11 Mitochondria Energy producers Powerhouse of the cell Oval-shaped
Many mitochondria in muscle cells

12 Chloroplast Only found in plants/ algae Contain food or pigments
Chloroplasts contain the pigment chlorophyll This is where photosynthesis happens!!

13 Vacuoles Store food, water, or waste materials
Plant cells have large vacuoles – to store water Animal cells have small vacuoles


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