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Introduction to Cells. Chapter 7. What is a cell?. Cells are the basic unit of all living things Unicellular M ulticellular. Shape of cells?. All shapes. What are colors of cells?. Green? Purple? Yellow? Pigment chloroplast chromoplast. What size are cells?.
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Introduction to Cells Chapter 7
What is a cell? • Cells are the basic unit of all living things • Unicellular • Multicellular
Shape of cells? • All shapes
What are colors of cells? • Green? • Purple? • Yellow? • Pigment • chloroplast • chromoplast
What size are cells? • How many cells are in the average-sized adult human? • 50 trillion • How many blood cells are there in a drop a human blood? • 5 million • What is the diameter of an averages sized cell (mm)? • 0.008 mm • What is the diameter of a cell nucleus (mm)? • 0.000065 mm • http://www.cellsalive.com/howbig.htm
Why do cells have specialized parts? • Organelles- have a specific role in the cell • Different tasks for different parts
CELLS • TISSUE • ORGANS • ORGAN SYSTEMS