Quotes About Mitochondria

A careful analysis of the DNA within the mitochondria indicates that errors are indeed concentrated here. The hope is that one day scientists might use the cells' own repair mechanisms to reverse the buildup of errors in the mitochondriaand therefore prolong the cells' useful life.

For example, aging in a car takes place mainly in the engine, where the oxidation and wear and tear take the greatest toll. The "engines" of a cell are the mitochondria. That's where sugars are oxidized to extract energy.

school you may have learned the basic components of a cell: the nucleus that contains genetic material, the energy-producing mitochondria, the protective membrane at the outside rim, and the cytoplasm in between.

According to biologist Lynn Margulis, it was this collaborative approach which allowed life to survive the first toxic pollutant holocaust—the spread in the atmosphere of a gas lethal to earth's horde of early inhabitants. The killer gas was oxygen. But mitochondria living in the new eukaryotic cells saved the day, gulping oxygen before it could do its harm and turning the murderous vapor into food for their protectress and for the other members of her cellular commune.

Our terminal decline into old age and death stems from the fine print of the contract that we signed with our mitochondria two billion years ago.

Mitochondria, as we have seen, are only passed on in the egg, so all 13 mitochondrial genes come from our mothers. If these genes really do influence lifespan, and we can only inherit them from our mothers, then our own lifespan should reflect that of our mothers but not our fathers.

the greatest mutational health hazard in the population is fertile old men. Thankfully, uniparental inheritance means that men don't pass on their mitochondria at all.

One mitochondrion contains tens of thousands of copies of each respiratory complex. A single cell contains hundreds or thousands of mitochondria. Your 40 trillion cells contain at least a quadrillion mitochondria, with a combined convoluted surface area of about 14,000 square metres; about four football fields. Their job is to pump protons, and together they pump more than 1021 of them – nearly as many as there are stars in the known universe – every second.

what happens if we take a cyanide pill: it jams up the final proton pump of the respiratory chain in our mitochondria. If the respiratory pumps are impeded in this way, protons can continue to flow in through the ATP synthase for a few seconds before the proton concentration equilibrates across the membrane, and net flow ceases. It is almost as hard to define death as life, but the irrevocable collapse of membrane potential comes pretty close. So

Mitochondria convert flux through the Krebs cycle into electrical membrane potential. The membrane is a capacitor: a thin insulating layer that separates two electrically charged aqueous phases, generating powerful electrical fields across the membrane. Changes

Storing genes, vulnerable informational systems, in the immediate vicinity of the mitochondrial respiratory chains, which leak destructive free radicals, is equivalent to storing a valuable library in the wooden shack of a registered pyromaniac.

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We are not made up, as we had always supposed, of successively enriched packets of our own parts. We are shared, rented, occupied. At the interior of our cells, driving them, providing the oxidative energy that sends us out for the improvement of each shining day, are the mitochondria, and in a strict sense they are not ours.

These studies resulted eventually in a complete sequence analysis of the complex from several species, and in the atomic resolution structure of the F catalytic domain of the enzyme from bovine mitochondria, giving new insights into how ATP is made in the biological world.

Certain fats called ketones and MCT oil are the preferred fuel to help mitochondria repair, renew, and rebuild. MCT (medium-chain triglyceride) oil is an excellent fuel source for the mitochondria. Unrefined coconut oil contains MCT, or you can buy MCT separately. It burns cleanly and enhances performance if taken before exercise.

Keeping mitochondria healthy (less sugar, less saturated fat, smaller meals, and less white fat promoting inflammation) slows down this aging process as we know it. And you end up with more energy every day. If your cells—via your power source—can become or stay much younger-acting, then your organs and systems will function much more youthfully, decreasing the chances of developing disease.

Your 40 trillion cells contain at least a quadrillion mitochondria, with a combined convoluted surface area of about 14,000 square metres; about four football fields.

It seems that all eukaryotic cells either have, or once had (and then lost) mitochondria. In other words, possession of mitochondria is a sine qua non of the eukaryotic condition

This was difficult to prove as most hydrogenosomes have lost their entire genome, but it is now established with some certainty.1 In other words, whatever bacteria entered into a symbiotic relationship in the first eukaryotic cell, its descendents numbered among them both mitochondria and hydrogenosomes.