Presentation on theme: "CELL THEORY: 1. All living things are composed of cells. 2. Cells are the basic units of structure and function in living things. 3. All cells are produced."— Presentation transcript:
CELL THEORY: 1. All living things are composed of cells. 2. Cells are the basic units of structure and function in living things. 3. All cells are produced from other cells.
Whats Inside an Animal Cell?
What are organelles? Tiny structures inside a cell. They carry out specific jobs within the cell. Kind of like organs for a cell.
CELL MEMBRANE The cell membrane is the outer doors of the cell. FUNCTIONS: It lets things in and out of the cell It holds everything together.
CYTOPLASM A jelly-like fluid that contains all of the organelles of the cell. FUNCTIONS: Holds all the organelles inside of the cell in a moving fluid.
CYTOPLASM CELL MEMBRANE
NUCLEUS The brains or control center of the cell.
Nucleus Rough ER
Nucleolus A small oval structure in the Nucleus that makes Ribosomes. FUNCTIONS: To make Ribosomes.
NUCLEUS = the whole peach NUCLEOLUS = the pit
VACUOLES Large water-filled sacs floating in the Cytoplasm. FUNCTIONS: Store food and other materials needed by the cell.
MITOCHONDRIA Rod-shaped structures found in the Cytoplasm. FUNCTIONS: They convert food energy into energy the other organelles use to do their job. POWERHOUSE OF THE CELL
ENDOPLASMIC RETICULUM (ER) A maze of passageways in the Cytoplasm. TWO KINDS OF ER IN ANIMAL CELLS: 1.Rough ER – Have Ribosomes attached 2.Smooth ER – No Ribosomes attached FUNCTIONS: To carry proteins and other materials from one part of the cell to other parts. Many of the cells chemical reactions occur here.
ENDOPLASMIC RETICULUM ROUGH ER SMOOTH ER
LYSOSOMES Small round structures found in the Cytoplasm. They contain digestive enzymes. FUNCTIONS: They break down materials with their digestive enzymes.
RIBOSOMES Small grain-like bodies found on the Rough ER and floating around the Cytoplasm. They are like protein factories. There are more ribosomes in a cell that any other organelle. FUNCTIONS: They make Proteins
A Whole Ribosome
GOLGI COMPLEX Flattened sacs and tubes found in the Cytoplasm. FUNCTIONS: Receives proteins from other Smooth ER. Packages the proteins up. Sends them to other parts of the cell.
ORGANELLES IN AN ANIMAL CELL
EUKARYOTIC CELL – HAS A NUCLEUS PROKARYOTIC CELL – DOES NOT HAVE A NUCLEUS