BIOL 1410 Lecture Notes - Fluid Mosaic Model, Spindle Apparatus, Fluid Compartments

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On surface of integral proteins (extracellular or intracellular) Mosaic: proteins dot surface like tiles of mosaic. Bound to proteins (glycoproteins) or lipids (glycolipids) Non membranous organelles: ribosomes: rrna and proteins (free/attached to er, centrosomes: make microtubules to form spindle apparatus, dense matrix with 2 centrioles (unknown function, cytoskeleton: determines shape, made of proteins. Intermediate filaments: tissue specific (keratin filaments in epithelial cells) Ser: continuous with rer for synthesizing lipids and steroid hormones and detoxification (liver: golgi apparatus/complex. Modifies, sorts and delivers proteins/lipids to membrane/lysozymes or secretes them: lysosomes, nucleus. Filled with digestive enzymes to digest bacteria and old organelles. Nuclear envelope: double membrane with nuclear pores connected to er. Nucleolus: dense region of dna, rna and proteins where ribosomes made (1/2, non membranous: chromosomes. Autosomes: non sex chromosome (hair color, eye color, etc. ) Gene: segment of dna with info to synthesize proteins.

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