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Organelles in an Animal Cell
 

Organelles in an Animal Cell

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    Organelles in an Animal Cell Organelles in an Animal Cell Presentation Transcript

    • What’s Inside a Cell?
    • Animal Cells • Found in every living animal. • Gives the animal its STRUCTURE and lets the animal FUNCTION. • Can be SPECIALIZED to do certain jobs. • Can be different sizes and shapes.
    • 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. It forms the outer boundary that separates the cell from its surroundings. FUNCTIONS: • It lets things in and out of the cell (like doors). • It holds everything together.
    • CYTOPLASM • A jelly-like fluid that contains all of the organelles of the cell. It is surrounded by the Cell Membrane. 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. It is a large oval structure. FUNCTIONS: • Produces proteins to control all of the cell’s activities
    • 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. Like storage areas for the cell. Not found in all animal cells. Some cells have more than one. FUNCTIONS: • Store food and other materials needed by the cell.
    • VACUOLE
    • MITOCHONDRIA • Rod-shaped structures found in the Cytoplasm. Known as the “powerhouses” or batteries of the cell. FUNCTIONS: • They convert food energy into energy the other organelles use to do their job.
    • MITOCHONDRIA
    • 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 cell’s chemical reactions occur here.
    • ENDOPLASMIC RETICULUMROUGHER SMOOTHER
    • LYSOSOMES • Small round structures found in the Cytoplasm. They contain digestive enzymes. They are like the clean-up crew. FUNCTIONS: • They break down materials with their digestive enzymes. • Break down large food particles into smaller ones. • Break down old cell parts and recycle • them.
    • LYSOSOMES Chemicals
    • 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. Like the cell’s mail room. FUNCTIONS: • Receives proteins from other Smooth ER. • Packages the proteins up. • Sends them to other parts of the cell.
    • GOLGI COMPLEX
    • Cytoskeleton • A web of protein in the cytoplasm FUNCTION: • Acts as a muscle and a skeleton • Keeps the membrane from collapsing • Helps some cells move
    • CELL WALL • The outermost organelle of a cell (in plant cells) that is made of cellulose (a sugar) FUNCTION: • Allow plants to stand upright • Some take in water
    • Chloroplast • A green organelle in plant cells made of two membranes and contain their own DNA FUNCTION: • Where photosynthesis takes place
    • ORGANELLES IN AN ANIMAL CELL