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Human Anatomy
Chapter 2 Cells the Living Units
28
Anatomy
Undergraduate 2
02/12/2011

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Term
Cells
Definition
Smallest living units in our bodies
Term
Organelles
Definition
Little organs carry on essential function of cells
Term
Enzymes
Definition
Proteins direct chemical reaction in the cell
Term
Metabolism
Definition
Sum of all chemical reaction in the cell
Term
Human Cells - 3 Main Parts
Definition
Nucleus, Cytoplasm, Plasma Membrane
Term
Plasma Membrane I
Definition
Separating intrancellular & extracellular compartments, thin, flexible layer define extent of cell
Term
Phospholipid Bilayers
Definition
Hydrophobic - Water Hater
Hydrophilic - Water Lover
Term
Integral Membrane Proteins
Definition
Span entire width of membrane, Contain both hydrophobic & hydrophilic
Term
Peripheral Membrane Proteins
Definition
Don't span the entire Membrane, loosely associated with other proteins or lipid molecules
Term
Plasma Membrane II
Selectively Permeable
Definition
UPS - Enter & Leave the cells
Term
Diffusion
Definition
Hight to Low
More to Less Concentrated
Term
Endocytosis - Phagocytosis
Definition
Cell Eating
Term
Endocytosis - Pinocytosis
Definition
Cell Drinking - Cell Sample Extracellular Fluid
Term
Exocytosis
Definition
(Throwing Up)
Out of the Cell
Term
Cytoplasm
Definition
Consists of Cytosol & Organelles
Term
Cytoplasmic Organeelles
Definition
Ribosomes, Endoplasmic Reticulum (ER), Golgi Apparatus, Mitochondria, Lysosomes, Peroxisomes, Cytoskeletal Elements
Term
Ribosomes
Definition
Proteins & Ribosomal RNA; site of Protein Synthesis
Term
Ribosomes - Free Ribosomes
Definition
Smooth ER
Term
Ribosomes - Attached Ribosomes
Definition
Rough ER
Term
Rough ER
Definition
Ribosomes external surfaces, makes proteins & membrane
Term
Smooth ER
Definition
Ribosomes, protein synthesis, Store Ca2+, makes enzymes & lipid metabolism
Term
Golgi Apparatus
Definition
UPS - Packing & Shipping
Term
Mitochondria
Definition
Batteries - Energy ATP
Power of the Cell
Power of the House
Term
Lysosomes
Definition
Demolition Crew - Breakdown bacteria, viruse ...
Term
Secretory Lysosomes
Definition
White Blood Cells, Immune Cell, & melanocytes
Term
Peroxisomes
Definition
Toxic Waste
Term
Cytoskeleton
Definition
Cell Skeleton - Support & Provide for Movements
Term
Cytoskeleton - 3 type of protein rods
Definition
Microtubules (Thickest), Microfilaments = actin filaments (Thinnest), Intermediate Filament(Stronger)
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