01:119:115 Study Guide - Final Guide: Survivorship Curve, Active Transport, Cell Membrane
29 Feb 2016
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Document Summary
Cellular work involved in production of electrochemical gradients- proton movement against a gradient of protons. Scientists distinguish most species using the morphological species concept. When a protein is denatured it loses functionality because intramolecular bonds, such as hydrogen bonds & van der waals interactions, that hold the protein in its 3-d shape. Denaturation disrupts secondary, tertiary and quaternary protein structure, causing the protein to lose its form & thus its function. Equilibrium on an island- rate of species immigration=rate of species extinction. Microtubules & microfilaments guide vesicles from the er to the golgi & from the golgi to the plasma membrane. Cotransport proteins allow a single atp-powered pump to drive the active transport of many different solutes. Experimentation allows rejection of hypotheses if contradictory evidence emerges mrna processing- introns are cut out of the primary transcript & the resulting exons are spliced together before mrna enters cytoplasm fro translation. Stomata- openings in the leaf for gas exchange (co2)
