BIO130H1 Lecture Notes - Benzene, Lysosome, Antiporter
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BIO130H1 Full Course Notes
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Large uncharged polar molecules and ions: require membrane protein for transport, membrane transport proteins, all multipass transmembrane proteins, protein lined path across cell membrane, transport polar and charged molecules, ions, sugar, maino acids, nucleotides, various cell metabolites. Passive and active transport: arrow only shows the direction of concentration gradient, simple diffusion= hydrophobic molecule (cid:224) high to low [, passive transport= no energy required, go from high to low [, channel proteins= form a channel, has selectivity, transporter mediated= some can be active or passive it depends on the kind, interacts with the molecule more, and changes shape a lot more, active transport= requires energy, moves things from low to high [, because it"s going opposite of the [] gradient, channel and transporter proteins are transport proteins, transporter is not the same as transport, transporter proteins= carrier proteins ( change shape a lot and carry the molecule for a bit)
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