Bio 181 ASU Exam 1 Questions and Answers Already Passed

Bio 181 ASU Exam 1 Questions and Answers Already Passed 3 fatty acids and glycerol are combined via an ________ ester linkage Actin Filament System cell motility/cell muscle, filapodia, microvilli, cell cortex Actin filaments are _____ nm 7 Anchorage-dependent uses contact inhibition to stop growth Anchorage-indepedent will keep growing forever given fresh nutrients and space Antiporter transports two different substances in opposite directions Approximately when did the first cells form on earth? 3.5 billion years ago Autocrine Communication cell talks to itself, a receptor goes to plasma membrane and binds to the ligand which changes the cell behavior Bundles of actin filaments at cell periphery are cross linked with what? myosin Cancer cells are anchorage-________________ independent Cell Communication Between cells often based on ligands and receptors derived from endomembrane system Cell Communication Within cells based on nuclear signal transduction and cytoplasmic signal trasnduction Cell size is limited by________ the diffusion of gas and nutrients/waste Cells "walk" with ______ and ________ lamelipodium an fillapodium Chromatin the molecular substance of a chromosome which consists of DNA, RNA and proteins Comparative Experiment data is gathered from different sources and is not manipulated and other variables are held constant Controlled Experiment scientists manipulate only one of the variables/factors being tested Cytokineses in plant cells = phragmoplast formation using polar microtubules Cytokinesis division of cytoplasm