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Human Anatomy

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Question
Answer
CYTOLOGY   STUDY OF CELLS  
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CYTOPLASM   FLUID THAT SURROUNDS THE ORGANELLES; CYTOSOL IS INSIDE IT  
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CYTOSOL   SUBSTANCE INSIDE CYTOPLASM; IT CONTAINS DISSOLVED SUBSTANCES LIKE O2 AND CO2, CARBOHYDRATES AND IONS  
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PLASMA MEMBRANE   JELLY LIKE SUBSTANCE; FUNCTION: creates a barrier by separating cytoplasm from the "External" environment. Regulates what enters/leaves from a cell. Structure: phospholipid bilayer  
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PHOSPHOLIPID BILAYER   2 layers. Embedded into the Phospholipd layer is "protein"(proteins controls what leave and enters the cells.  
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PASSIVE PROCESS   Doesn't require energy.  
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ACTIVE PROCESS   Does require energy  
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DIFFUSION   Movement of dissolvable substances (from High to Low)  
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OSMOSIS   Movement of H20 from High to Low  
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VESICULAR TRANSPORT   Type of Active Transport; (vesicles-small sacs with a membrane wall)  
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Exocytosis   substances going OUT of cells  
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Endocytosis   Substances Entering the cells  
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Phagocytosis   special type of Endocytosis  
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Organelles   Cell organs; 2 types: membrane and non-membrane bound  
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Cytoskeleton   Supports the cell that helps to maintain its shape  
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3 Filaments of Cytoskeleton   Micro Filaments, Inter mediate, MicroTubules  
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MicroFilaments   Thinnest Filament  
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InterMediate   Thicker Filament  
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MicroTubules   Thickest Filament  
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Centrioles   Small sections of Microtubules; Function: holds plasma membrane to Cytoplasm. Act as tracks which organelles move along but doesn't allow Plasma Membrane. to pass through.  
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Ribosomes   Protieins used to make Protiens. Translates(convert) RNA from nucleus into Protiens.  
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Free Ribosome   Floats in Cytoplasm  
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Mitochondria   Kidney Shaped; Creates surface area. This is where O2 & glucose is used to make ATP by a process called Cellular Respiration.  
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Christae   Folds~~  
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ATP (used for energy)   Adenosine Tri Phosphate  
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Rough Endoplasmic Reticulum   Ribosomes are Attached; Proteins synthesized(created) at Ribosomes enter Rough E.R and gets modified  
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Smooth Endoplasmic Reticulum   Ribosomes are not Attached; Involved in Protien Synthesis;Synthesizes lipids, Carbohydrates, Store calcium ions, Detoxify Toxins  
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Golgi Apparatus   Stores, Packages and Transports  
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Rough and Smooth ER   Series of membranous sacs Flattened  
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Lysosome   ("LY-SOL") cleaner upper of the cell with digestive enzymes; Consumes cell debris and Old organelles.  
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Nucleus   Contains Nucleolus; Surrounded by nuclear membrane; Most cells have nucliei RBC's doesn't.  
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Nuclear Envelope   Double membrane  
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Nuclear Pores   Holes in Nuclear Envelope  
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What makes Protiens?   Amino Acids (in Nucleus)  
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Nucleolus   condensed of RNA and DNA where Ribosomes are made; It contains the DNA code contained in 23 pairs of chromosomes. DNA codes for RNA  
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Microvilli   Projections of Plasma Mem.; Contains Cytoplasm.  
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Functions of Microvilli   Increases Surface Area; Example: Microvilli in small intestine makes space for food.  
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Cilia   Protien Filaments beats in a Particular direction; Example: Respiratory Tract. moves mucus and particles in a particular direction.  
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Flagella (____,...)   Long Protien Filament that gives the sperm mobility  
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Homeostasis   Maintaining Equilibrium; Negative Feedback= what goes up must come down: temp, ph etc} Positive Feed back=what goes up must go up: Already bleeding and More bleeding occurs so that leukocytes can heal a wound.  
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Created by: Lee
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