BSCI 1511 Study Guide - Midterm Guide: Thrombus, Myeloid Tissue, Pulmonary Vein

• School: Vanderbilt University
• Department: Biological Sciences
• Course: BSCI 1511
• Professor: Abbot Patrick, Julian Hillyer

Document Summary

Plants: know greening response / de-etiolation. Mainly light stimulates phytochrome cgmp protein kinase txn factors turned on for greening: auxin works by plasma membrane opening h+ pumps, increasing membrane voltage & decreasing ph (acidic) Low ph = inflow of h20 to neutralize = elongation. Triple response = slowing of stem elongation, thickening of stem, curvature that allows stem to grow horizontally. Molecular basis: phototropism = growth towards light. Darwin experiment w/ removing tip, transparent tip, blocked stem, etc. Drive seed germination, de-etiolation, flowering, & shade avoidance. Neurons: resting potential not -90 b/c a few na+ ions leek across membrane, graded potential = does not cause ap, small change in membrane potential, vertebrates have salutatory conduction. Myelin sheath composed of schwann cells in pns and oligodendrocytes in. Once depolarization occurs, calcium levels are elevated, providing for synaptic vesicles to fuse w/ plasma membrane and exocytose nt. Nt can bind to 2 types of receptors.