2016/11/18

Energy efficient cells

Cities operating at 100% energy efficiency - The Cell has factories, it's a supercomputer and a complex city


Excerpt: ""The miniature cities are fully equipped with all of the facilities, or organelles, that are necessary for a smooth-running operation."
Administration center, factories and even recycling centers are all there, running at 100-percent efficiency. In contrast to the infrastructures and city buildings in cells, however, the organelles, are not built on static foundations. They are huge, mobile cellular cargos that travel rapidly to reach resources and deliver products. When organelles go off the rails and mobility is disrupted, bad things happen.
"In human neurons, glitches in these movements result in severe neuro diseases," said Brandizzi, an MSU AgBioResearch scientist. "But before our paper, scientists had little idea about how the organelles moved on their tracks in plant cells beyond the conventional proteins that make up the cytoskeleton."
Brandizzi and her team of MSU scientists, focused on the largest factory in a cell -- the endoplasmic reticulum. Earlier studies had proven that the ER moved around the cell on a track, known as actin cytoskeleton propelled by myosin, structures that give cells their shape as well as serve as a rail and motor system at the molecular level."
My comment: Realizing the perfection of how cellular mechanisms function has led many scientists to support Intelligent design and creation. For example Jerry Fodor and Massimo Piattelli-Palmarini criticize neo-darwinism after studying a few perfectly functioning organisms:
http://www.patheos.com/blogs/geneveith/2011/12/non-creationist-critiques-of-darwinism/
"
Fibonacci patterns, in which each term is equal to the sum of the two preceding ones, seem to be prior to all evolutionary developments; scaling factors in organisms are multiples of a quarter, not of a third, according to the “one-quarter power law”; computational analysis of nervous systems of organisms show that their “connection economies” are perfect; “cost versus speed” analyses of the respiratory patterns of the song of canaries show the most efficient use of energy; tests of the ratio of foraging honeybees to those staying in the hives show perfect solutions in all situations. There is perfection everywhere. They also offer an example of a type of wasp whose patterns of feeding her young competes with ID theorist Michael Behe’s notion of “irreducible complexity.”
But the major neo-Darwinist problem, they conclude, is that natural selection, in analogy to artificial selection, depends on the existence of a mythical “Mother Nature.” But since there is no Mother Nature, “she is a frail reed for [adaptationists] to lean on. Ditto, the Tooth Fairy; ditto the Great Pumpkin; ditto God. Only agents have minds, and only agents act out of their intentions, and natural selection isn’t an agent.”"