Cell Membrane - AS Biology Please Rate All questions are from CGP AS-Level Biology, Revsion guide 3.0 / 5 based on 1 rating ? BiologyCellular processes and structureASOCR Created by: GracieCreated on: 04-01-13 16:48 One function of a channel protein ? Allows certain substances, molecules through a passage/pore. 1 of 11 Functions of glycoproteins ? Acts as antigens for cell recongnition, cell signalling 2 of 11 What is pressure potential ? The amount a solute molecule in a solution, lower the water potential 3 of 11 What is a turgid cell ? A plant cell, where water has entered the cell 4 of 11 What is a plasmolysed ? A plant cell, where water has left the cell and the cell protoplast pulls away from the cell wall. 5 of 11 Hypotonic soluton is a ? high water potential 6 of 11 Facilitated diffusion allows ? Small molecules, with no electrical charge 7 of 11 Is active transport carried out by transporter protiens ? true 8 of 11 Similarity between active and facilitated diffusion ? They are both spectific 9 of 11 Functions of membranes within cells ? Some membranes are folded, increasingSA:Vol ratio. Form vesicles. They control what leaves organelles. 10 of 11 To enable cell signaling ? The receptor protein must have a complementary shape to the messenger molecule. 11 of 11
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