1.According to the fluid-mosaic model of cellular membrane structure: A)all membranes have a lipid-protein-lipid structure B)proteins form a continuous layer on the surface of the membrane C)the two dark layers visible in the electron microscope are lipid layers D)lipids cannot move laterally within the bilayer E)proteins form different patterns on the bilayer that vary from time to time and place to place 這題我選A，但有對答到答案是B的，不太確定 2.A symporter is a carrier protein in which the transport of one solute: A)occurs through a channel B)occurs without the simultaneous transport of another solute C)depends on the transport of another solute in the opposite direction D)depends on the transport of another solute in the same direction E)depends on the opening of a ''gate'' in the carrier protein 此題我覺得是D，但不確定 3.A hydrophobic portion of a substrate molecule would most likely fit into a _____ region of its enzyme's active site A)positively charged B)negatively charged C)hydrophilic D)hydrophobic E)polar 這題我選E 4.In the electron transport chain,quinone molecules shuttle protons from the__ into the ____ A)cytosol;intermembrane space B)intermembrane space;cytosol C)outer membrane;inner membrane D)matrix;intermembrane space E)intermembrane space;matrix 5.Cytoplasmic inheritance in plants involves genes present in the: A)cytosol only B)plastids only C)mitochondria only D)cytosol and plastids E)mitochondria and plastids 此題我選C 6.Homologous chromosomes pair up during: A)prophaseⅠ B)prophaseⅡ C)metaphaseⅠ D)metaphaseⅡ E)telophaseⅠ 我覺得A跟C都對，因減數分裂中期後，同源染色體才分開，但這是單選題，所以要 選哪一個選項較好呢 新手上路～還請各位多多見諒～也懇請指教囉！ --

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