Biol1020-10.4-cell structures

Biol1020-10.4-cell structures - ♦ Breakdown inactive...

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4 October 2006 Cytoskeleton Microtubules Actin filaments (microfilaments) Intermediate filaments Microtubules Hollow Consists of individual “bricks” called tubulin molecules which are protein molecules—they come in pairs called “Tubulin dimer”=alpha tubulin and beta tubulin 13 rows of tubulin dimmers proteins attach called microtubule-associated proteins (MAPs) MAPs give microtubules their function “motor” proteins: Kinesin Dynein Form in Microtubule Organizing Centers (MOCs) Centrioles Manufacture microtubules Cilia/cilium Covered by plasma membrane Contains microtubules 9-2 organization for movement: microtubules, dynein molecules, and ATP Kartagener’s Syndrome-Immotile cilia syndrome Chrome bronchitis, partial hearing loss, sterility, reversed organs It’s hereditary like ‘other’ disease Microfilaments
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Unformatted text preview: ♦ Breakdown inactive proteins ♦ Motility is contraction Uses actin, mysosinfilaments, and ATP Plant Cells Cell wall ♦ Consists of cellulose and other… Primary wall=first wall Thicker wall= more rigid cell=more rigid/hard plant Middle lamella ♦ Made of pectin and pelcium pectate ♦ Glues cells together Plasmodesmata- cytoplasmic channels ♦ Connects one cell to another by allowing communication 4 October 2006 ♦ Vacuoles in plants Tonoplast is the vacular membrane It’s functions: ♦ Stores pigments ♦ Stores nicotine and other toxins Human cell Desinosome ♦ Welds animal cells together ♦ Made up of individual glycoprotein molecules(sugar protein) Gap junction ♦ Allows molecules to exchange between cells ♦ Connexon Pores in cell membrane...
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