We look on with nervous excitement as Jason collects an intact plug of seafloor sediment, stows it in its sample basket, and begins the long trip back to the surface. See photograph below. The ocean is well stocked with mysterious creatures, and while the tentacled and the sharp-toothed may be the Gorey-esque stuff of nightmares, humble microbes also deserve a nod as some of the most biologically exotic denizens of the deep sea.
The bacterium Deinococcus radiodurans remains viable after exposure to 1, times the fatal human radiation dose, and the aquatic archaeon Ferroplasma acidarmanus can withstand extremely acidic water, with pH values as low as 0.
Because of our own requirement for oxygen and narrow acceptable ranges of temperature, salinity, pressure, pH, and radiation, the survival of other organisms in a wide range of environments seems extreme to us. But for a microbe that has come to depend on the abundant hydrogen ions of acidic hot springs, an air-conditioned suite at the Ritz is a threatening proposition. The wide variety of biochemical modes of existence reflect billions of years of evolution, adaptation, and niche differentiation rather than a standardized characterization of biological fortitude.
One such challenge, something that all living organisms must face, is the acquisition of chemical energy to drive cellular reactions. Perhaps the ways in which organisms handle this task could separate the truly industrious from the merely viable.
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In the case of mammals and most eukaryotes, sugars and other organic molecules are common electron sources, the oxidation of which drives ATP production. Bacteria and archaea can use a range of other chemicals, from sulfide to iron to ammonium. Cells take up these electron-rich molecules and capture their electrons, which jump down an electron transport chain in the mitochondrial or cell membrane. Finally, protons stream back into the cell, releasing the chemical pressure and generating ATP. With each energy-requiring reaction, from flagella construction to cell division and growth, cells draw upon their ATP bank.
This elegant, multistep process is a pervasive feature of life as we know it, but energetic challenges are ever-present. The concentrations of the reactants and the speed at which enzymes can mobilize them are also key factors.
Cultivating the Energy of Life
These two components—the magnitude of energy available from a particular pairing and the rate of such reactions—determine how much energy a cell can produce. The other half of the equation—the cost of living, as it were—is often harder to evaluate. Cataloging the biochemical parts list of a particular cell is one challenge. Scaled over millions of such reactions, the margin of error may be a substantial proportion of the available energy. And this is just considering the biosynthesis of new cellular material. In most environments, microbes must always be vigilant against biochemical breakdown resulting from environmental stresses, calling on energy reserves to restore old enzymes or patch holes in cell walls.
Competition among residents may also demand additional energy expenditure, such as powering flagella to swim around in search of food or producing antibiotic molecules to keep predatory neighbors at bay. Microbes that can survive in scalding or frigid waters may not be fighting for their lives, despite inhabiting an environment that would be certain death to any mammal. See photograph above. The mesmerizing visuals contrast sharply with the damp, sulfurous odors wafting across your nostrils and the stern warnings from signs and rangers to keep your distance.
Against this otherworldly backdrop, the discovery of viable cells living in the ultrahot waters came as a surprise that forced a reconsideration of microbial limits. After all, water temperatures frequently topped out well above the tolerance range of most known organisms. Nearly all of E. Along the outer edges of thermal springs, energy-generating light is abundant, and cyanobacteria flourish. In order to accomplish its goal, the book starts with "layman" discussions about energy and how these can be used to single out human from other living systems, or even living systems from non-living matter, what differentiates a rock from an oyster, and finishes with advanced concepts, how living systems are able to "produce" energy.
The first chapters covers the common questions of the distinctions between living and inanimate objects.
Book 7 - “The Energy of Life”
Asimov then explains in a step by step manner about the physical world first through slow, but interesting chapters. He writes about the effect and major role of the evolution and advance of man by fire and heat, he tells about thermodynamics and its laws , he recollects the thoughts of previous scientists, and their painstaking works, and finally, the quantum theory and radiation , which has revolutionised physics and technology. An explanation of electricity and basic chemistry laws and features are also included. The physical section ends here, and continues into biology.
I had made what I know feel is a cardinal mistake of modern, technological society: I had let my logical mind overwhelm my intuition. We don't live in a culture that exalts the intuitive mind the way some Eastern cultures do. It turns out that what we really need to do to sweeten and deepen our everyday experience with new insights and sensations is to set aside much of we've been taught in school, read in books, and learned from our parents.
Energy and Life
It's tough to do this, because the rational worldview is the lifeline of Western culture, even though that view has generated wrong turns along the way, some of which now threaten the existence of our species and our planet. We're accustomed to yelling down the stethoscope of intuition and stillness found in meditation and mindful practices can be disquieting. Yet I believe it's necessary if we really want to feel the subtle but magnificent energy in our bodies and our world.
Sensing energy is not the same as sensing the rough surface of a tree or the solid quality of an automobile door; energy comes in more as realization, sometimes after the fact, than hit-you-over-the head tactility. It turns out that what we once considered supernatural is just what we haven't figured out yet.
Researchers all over the world are substantiating, qualifying and quantifying the energies of life. Indeed, scientists are learning more about them every day and soon we'll know about their work. In the meantime, however, all each and every one of us really needs to do to feel what we have worried we cannot feel and know what we have previously feared is unknowable is to open our minds, suspend our critical judgment, slow down, and listen.
11 Daily Ways to Increase Life Force Energy | Gaia
Spend some time in a park or wilderness area. Stop dead still in the middle of a subway station and just wait for a moment. It's the steady thrumming that is neither noise nor the rumble of trains, the way you're suddenly drawn to one person or repelled by another. It's the feeling when you walk into a room that someone is sad there though everyone else is happy. It's the sudden understanding that creeps up on you as you admire that gorgeous new enclosure at the zoo that the tiger inside is crying for home, the sense that a plan in another room needs water, the unaccountable tickle while you're working at your office desk that tells you your pet turtle has flipped over on her back and needs help.