02CellBasics - What are cells? Types of cells? 1 Structures...

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1 What are cells? What are cells? Types of cells? Types of cells?
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2 Structures and Size Madou Fundamentals of Microfabrication Cell Thin Section of a Mammalian Cell Macroorganism, Eukaryotic
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3 Organelles Nucleus (Info, Control) Lysosome, Peroxisome (Degradation) Golgi (Sorting, Modification) ER (Production) Mitochondria (Energy, Apoptosis) Cytoskeleton Keratin (Mechanical Stability) Actin (Movement, Shape, Signaling) Microtubules (Mitosis, Transport)
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4 Cell Membrane: The cell membrane is a barrier that controls the entry of most substances into the cell. The barrier is made up of ~50% lipids and ~50% proteins. The proteins serve diverse functions including transportation of substances into and out of the cell, communication, and enzymatic activity. Nucleus: The nucleus is where the cell stores its genetic matierial in the form of DNA. The DNA is organized into chromosomes which are duplicated for cell division. Transcription also takes place in the nucleus as DNA is transcribed into RNA which is then spliced to produce mRNA. Mitochondria: The miotchondria is the power plant for the cell. It converts the energy stored in carbohydrates, lipids, and amino acids to ATP for the cell. Golgi apparatus: The golgi apparatus packages and processes macromolecules for secretion from the cell and also for delivery to other organelles in the cell. Endoplastic reticulm:
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This note was uploaded on 03/03/2009 for the course BIOMEDE 321 taught by Professor Takayama during the Winter '08 term at University of Michigan.

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02CellBasics - What are cells? Types of cells? 1 Structures...

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