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Transcript
Eukaryotic Cells Robert Hook Contribution to Science: Came up with the word “cells” Anton van Leeuwenhoek Contribution to Science: Discovered microorganisms in pond water. He called them animalcules. Cell Theory • All living things are composed of cells • Cells are the basic units of structure and function in living things • New cells are produced from existing cells Eukaryotic Cell Eukaryotic Cell Definition: A cell that contains a NUCLEUS 2 Types of Eukaryotic Cells 1) Animal Cell 2) Plant Cell Parts of the Eukaryote Cell Membrane Encloses contents of entire cell Cell Membrane Cytoplasm Gel like region that holds the organelles and nucleus in place Organelles “Little Organs” Specialized structures within a cell Organelles within an Animal Eukaryotic Cell Nucleus Stores the cell's DNA Coordinates the cell's activities (growth, metabolism, protein synthesis, cell division) Endoplasmic Reticulum Transports materials ER Ribosomes Where proteins are made Look like small specks throughout the cytoplasm or ER Golgi Apparatus Receives, modifies, and ships out, proteins from the ER, within or outside the cell Mitochondria Converts chemical energy stored in food into usable energy for the cell Lysosome Break down the cell’s food, waste, and damaged organelles. Vacuoles Stores materials such as water, salts, proteins, and carbohydrates until the cell needs them