BIO 1140 Lecture Notes - Lecture 4: Macrophage, Glycocalyx, Glycolipid
4 Nov 2017
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Me(cid:373)(cid:271)ra(cid:374)e pote(cid:374)tial (cid:449)o(cid:374)"t (cid:271)e o(cid:374) e(cid:454)a(cid:373: question 1. Towards plus end does go to periphery, toward plasma membrane. There are 2 motor proteins that travel in different directions: this is an axon, propose a way this portion of a cell can grow to reach a target (eg. muscle). Describe the structural elements involved and the steps required. My guess: f-actin network and the dynamic microtubule will be expanded on by the motor proteins, and this growth will give the axon shaft room to expand and reach its target. Answer: first thing that needs to happen is to receive a signal or a message, that will trigger it to grow. Inside the cell, microtubules will have to extend. To do this, tubulin diamers will have to attach, alpha end to beta end. Tubulin will need to be available to do this. Part of this tubulin dimer is the positive end, which will need gtp at the extremity.
