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Cells (Plasma Membrane (.External barrier
.Transport substance into or…
Cells
Plasma Membrane
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Membrane Transport
Facilitated Diffusion
.Movement down a concentration gradient
.requires no cellular energy
.requires a integral proteins
.Movement until equilibrium is reached
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large molecules ( glucose, amino acids)
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Simple Diffusion
.Movement down a concentration gradient
.Requires no cellular energy
.water across a membrane is Osmosis
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Cell Life Cycle
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Interphase
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G1 (gap 1)
.cell metabolically active
. make protein
. end G1, start replicate in preparation for cell division
Cytoplasm
Cytosol
.fluid containing substance
.consist of water, ions, enzymes
Organellles
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Mitochondria
Rodlike, double membrane structure
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Microfilaments
smallest protein actin, can produce movement
breakdown and then build up
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Centrioles
.paired cylindrical bodies, each composed nice triplet of make up microtubules
. process mitosis and separation of chromosomes
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