Related topics: cells

Scientists pioneer new method of measuring electricity in cells

Electricity is a key ingredient in living bodies. We know that voltage differences are important in biological systems; they drive the beating of the heart and allow neurons to communicate with one another. But for decades, ...

Super-resolution 'street view' microscopy hits the SPOT

The ability to "see" the inner workings of structures (organelles) within cells, in real time, offers the promise of advancements in disease diagnosis and treatment. Organelle dynamics drive the self-efficient micro-world ...

Researchers create artificial cell organelles for biotechnology

Biotechnologists have been attempting to reprogram natural cell organelles for other processes for some time—with mixed results, since the laboratory equipment is specialized on the function of organelles. Dr. Joanna Tripp, ...

Uncontrolled molecule sparks rare liver cancer

Since humans first controlled fire, they have camped around it to circulate information, signaling each other when something approaches. Metaphorically, certain molecules have been carrying information around our cells to ...

Specialized cellular compartments discovered in bacteria

Researchers at McGill University have discovered bacterial organelles involved in gene expression, suggesting that bacteria may not be as simple as once thought. This finding could offer new targets for the development of ...

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Organelle

In cell biology, an organelle ( /ɔrɡəˈnɛl/) is a specialized subunit within a cell that has a specific function, and is usually separately enclosed within its own lipid bilayer.

The name organelle comes from the idea that these structures are to cells what an organ is to the body (hence the name organelle, the suffix -elle being a diminutive). Organelles are identified by microscopy, and can also be purified by cell fractionation. There are many types of organelles, particularly in eukaryotic cells. Prokaryotes were once thought not to have organelles, but some examples have now been identified.

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