Chapter 3 - Chapter 3 The Structure and Function Of the...

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Chapter 3 The Structure and Function Of the Cell Of the Human Body Chapter 3 Cells Robert Hooke Robert Hooke Cells The cell is the structural and functional unit of all living matter. Cellular Diversity 100 trillion cells in the body -- 200 different types Vary in size and shape related to their function I. The Typical Cell: Structures and Functions I. The Typical Cell: Structures and Functions A. Cell Membrane 1. The cell membrane is composed of a phospholipid bilayer that contains proteins. 2. The cell membrane is selectively permeable; it regulates what enters or leaves the cell. Cell Membrane B. Structures Inside the Cell 1. The nucleus is the control center of the cell; it stores the genetic information. B. Structures Inside the Cell mRNA is made inside the nucleus, but functions inside the cytoplasm B. Structures Inside the Cell The cytoplasm is a gel-like substance inside the cell membrane but outside the nucleus. Many different organelles are in the cytoplasm: B. Structures Inside the Cell 4. Mitochondria are the power plants of the cell because they are the sites of most ATP production. B. Structures Inside the Cell Metabolically active cells contain more mitochondria 2 Layers Smooth ouside Folded inside (Cristae)
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This note was uploaded on 06/06/2011 for the course BIO 180 taught by Professor Sarahbales during the Spring '11 term at Moraine Valley Community College.

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Chapter 3 - Chapter 3 The Structure and Function Of the...

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