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Mitochondria and Anaerobic Energy Metabolism in Eukaryotes
Mitochondria are sometimes called the powerhouses of eukaryotic cells, because mitochondria are the site of ATP synthesis in the cell. ATP is the universal energy currency, it provides the power that runs all other life processes. Humans need oxygen to survive because of ATP synthesis in mitochondria. The sugars from our diet are converted to carbon dioxide in mitochondria in a process that requires oxygen. Just like a fire needs oxygen to burn, our mitochondria need oxygen to make ATP. From textbooks and popular literature one can easily get the impression that all mitochondria require oxygen. But that is not the case. There are many groups of organismsm known that make ATP in mitochondria without the help of oxygen. They have preserved biochemical relicts from the early evolution of eukaryotic cells, which took place during times in Earth history when there was hardly any oxygen avaiable, certainly not enough to breathe. How the anaerobic forms of mitochondria work, in which organisms they occur, and how the eukaryotic anaerobes that possess them fit into the larger picture of rising atmospheric oxygen during Earth history are the topic of this book.
Mitochondria and Anaerobic Energy Metabolism in Eukaryotes
Mitochondria are sometimes called the powerhouses of eukaryotic cells, because mitochondria are the site of ATP synthesis in the cell. ATP is the universal energy currency, it provides the power that runs all other life processes. Humans need oxygen to survive because of ATP synthesis in mitochondria. The sugars from our diet are converted to carbon dioxide in mitochondria in a process that requires oxygen. Just like a fire needs oxygen to burn, our mitochondria need oxygen to make ATP. From textbooks and popular literature one can easily get the impression that all mitochondria require oxygen. But that is not the case. There are many groups of organismsm known that make ATP in mitochondria without the help of oxygen. They have preserved biochemical relicts from the early evolution of eukaryotic cells, which took place during times in Earth history when there was hardly any oxygen avaiable, certainly not enough to breathe. How the anaerobic forms of mitochondria work, in which organisms they occur, and how the eukaryotic anaerobes that possess them fit into the larger picture of rising atmospheric oxygen during Earth history are the topic of this book.
Transformer
'One of my favourite science writers' Bill Gates 'Hugely important' Jim Al-Khalili For decades, biology has been dominated by information - the power of genes. Yet there is no difference in information content between a living cell and one that died a moment ago. A better question goes back to the formative years of biology: what processes animate cells and set them apart from lifeless matter? In Transformer, Nick Lane turns the standard view upside down, capturing an extraordinary scientific renaissance that is hiding in plain sight. At its core is an amazing cycle of reactions that uses energy to transform inorganic molecules into the building blocks of life - and the reverse. To understand this cycle is to fathom the deep coherence of the living world. It connects the origin of life with the devastation of cancer, the first photosynthetic bacteria with our own mitochondria, sulphurous sludges with the emergence of consciousness, and the trivial differences between ourselves with the large-scale history of our planet.
The Ascent of Information
“Full of fascinating insights drawn from an impressive range of disciplines, The Ascent of Information casts the familiar and the foreign in a dramatic new light.” —Brian Greene, author of The Elegant Universe Your information has a life of its own, and it’s using you to get what it wants. One of the most peculiar and possibly unique features of humans is the vast amount of information we carry outside our biological selves. But in our rush to build the infrastructure for the 20 quintillion bits we create every day, we’ve failed to ask exactly why we’re expending ever-increasing amounts of energy, resources, and human effort to maintain all this data. Drawing on deep ideas and fr...
Synergistic Selection: How Cooperation Has Shaped Evolution And The Rise Of Humankind
'Nothing about the evolution of biological complexity makes sense except in the light of synergy.' Peter Corning's new book is being hailed as a major contribution to what is perhaps the greatest shift in our understanding of evolution since The Origin of Species. It's a tour de force that takes us on a synergy-guided tour of the history of life. As Corning puts it, 'life on Earth has been a synergistic phenomenon from the get go.' Corning also shows how synergy has been a key to human evolution, including the rise of complex modern societies. 'Cooperation may have been the vehicle, but synergy was the driver.' As we now face a tipping point and another major transition in evolution, Corning offers us a synergy-based road-map to the future. 'One of the great take-home lessons from the epic of evolution is that cooperation produces synergy, and synergy is the way forward. The arc of evolution bends toward synergy.'Related Link(s)
Global Implications of the Nitrogen Cycle
Nitrogen constitutes 78% of the Earth’s atmosphere and inevitably occupies a predominant role in marine and terrestrial nutrient biogeochemistry and the global climate. Callous human activities, like the excessive industrial nitrogen fixation and the incessant burning of fossil fuels, have caused a massive acceleration of the nitrogen cycle, which has, in turn, led to an increasing trend in eutrophication, smog formation, acid rain, and emission of nitrous oxide, which is a potent greenhouse gas, 300 times more powerful in warming the Earth’s atmosphere than carbon dioxide. This book comprehensively reviews the biotransformation of nitrogen, its ecological significance and the consequences of human interference. It will appeal to environmentalists, ecologists, marine biologists, and microbiologists worldwide, and will serve as a valuable guide to graduates, post-graduates, research scholars, scientists, and professors.
Philosophical Transactions of the Royal Society of London
Each issue of Transactions B is devoted to a specific area of the biological sciences, including clinical science. All papers are peer reviewed and edited to the highest standards. Published on the 29th of each month, Transactions B is essential reading for all biologists.
