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Unformatted text preview: C) They induce actin depolymerization D) They induce ATP hydrolysis in actin subunits at the (-) end E) They release factors that cause myosin polymerization 3.) If the concentration of actin subunits in a cell is above the critical concentration (Cc) for the minus (-) end, A) Treadmilling would occur B) Both plus and minus ends would lose subunits C) Both plus and minus ends would gain subunits D) The actin filaments would display increased levels of dynamic instability 4.)Protrusion of actin at the leading edge of a cell involves A. Nucleation of new filaments by ARP2/3 B. Elongation of actin filaments C. Capping of actin filaments at steady state D. Recognition of the ADP-form of actin by cofilin E. All of the above...
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This note was uploaded on 05/28/2008 for the course BIO SCI D103 taught by Professor Suetterlin/macgregor during the Winter '08 term at UC Irvine.
- Winter '08
- cell biology