ANHB1101 Lecture Notes - Lecture 18: Golgi Apparatus, Lipid Bilayer, Nuclear Membrane
5 Sep 2018
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Phosphor-lipid bilayer hydrophobic tails (non-polar) + hydrophilic head (polar) Proteins within the membrane (integral + peripheral) Contains cholesterol molecules provides fluidity + permeability. Glycoproteins have sugar molecules attached indicates what cell type based on the type of sugar (important for the immune system). Inner (cristae folds large surface area) + outer membrane. Nucleus: dna codes for protein production, nuclear envelope phospholipid bilayer, nuclear pores, outer membrane is continuous with rer, chromatin highly compacted dna wrapped around histones, nucleolus ribosome production. Ribosomes (made of proteins + rrna made in the nucleolus) Microfilaments edge of cells (external support) made of actin small. Intermediate filaments reaches membrane at point of attachment to another cell bigger. Microtubules transport throughout the cell vesicles move along these when moving throughout the cell (tubulin) bigger. Rooted by basal body (more strength: gut epithelial cells (lining, stops molecules passing in between cells, creates an impermeable barrier.
