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What makes up living things? Speaking of which, what defines a living organism? Introduction to Cells Unit 1 - 22/23 August 2012 Characteristics Definition Organism Examples Nonexamples Characteristics1. Organization 2. Grows, develops, reproduces 3. Made up of one or more cells 4. Needs energy and responds to environment Definitiona living thing Organism Examplesyou, me, dogs, fungus, plants, bacteria Nonexamplesrocks, dirt, water Unicellular vs. Multicellular Where do cells come from? 1660- Robert Hooke 1670 - Anton van Leeuwenhoek 1800s - Louis Pasteur, cell theory vs. spontaneous generation http://202.204.115.67/jpkch/jpkch/2008/wswx/chapter%201.htm Is every cell the same? Cells Cells Prokaryote -no organelles -mostly unicellular Eukaryote -organelles -mostly multicellular Plant Animal What is an organelle? Organelle = any part of the cell enclosed in the membrane http://www.schooltube.com/video/996ead6b48924150f cf1/ Homework: Watch Both Video Links on Website (Check Weekly Work)