In cellular biology, unraveling the complexities of cellular function at the molecular level remains a paramount endeavor. Significant scientific focus has been placed on understanding the interactions at organelle contact ...
Cell & Microbiology
Apr 12, 2024
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31
Modern biology textbooks assert that only bacteria can take nitrogen from the atmosphere and convert it into a form that is usable for life. Plants that fix nitrogen, such as legumes, do so by harboring symbiotic bacteria ...
Cell & Microbiology
Apr 11, 2024
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Cells contain various specialized structures—such as the nucleus, mitochondria or peroxisomes—known as "organelles." Tracing their genesis and determining their structure is fundamental to understanding cell function ...
Cell & Microbiology
Apr 10, 2024
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124
Nitrogen is a nutrient essential for all life on Earth. Although nitrogen gas (N2) is plentiful, it is largely unavailable to most organisms without a process known as nitrogen fixation, which converts dinitrogen to ammonium—a ...
Evolution
Apr 3, 2024
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319
Toxoplasmosis is an infectious disease found worldwide, caused by the single-celled parasite Toxoplasma gondii. In humans, infection poses a particular risk to pregnant women, as it can lead to birth defects. Like the closely ...
Evolution
Feb 16, 2024
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71
Just as healthy organs are vital to our well-being, healthy organelles are vital to the proper functioning of the cell. These subcellular structures carry out specific jobs within the cell; for example, mitochondria power ...
Cell & Microbiology
Jan 1, 2024
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121
Researchers from Telethon Kids Institute and The University of Western Australia have developed a new technique to see inside cells with unprecedented detail, revealing a complicated web of interactions that provides new ...
Cell & Microbiology
Dec 21, 2023
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23
Two studies by scientists at the University of Chicago have demonstrated a new way to look into the inner workings of cells—in particular, to track the flow of ions inside the many tiny organelles inside the cell.
Cell & Microbiology
Oct 5, 2023
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12
Scientists have long understood that parts of cells, called organelles, evolved to have certain shapes and sizes because their forms are closely related to how they function. Now, Johns Hopkins researchers have developed ...
Cell & Microbiology
Sep 27, 2023
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33
Every system has its waste disposal system. The cell organelles known as "peroxisomes" dispose of toxic substances and fats in the human body, among other things, and, in doing so, they prevent serious illnesses. The "Pex" ...
Biotechnology
Sep 26, 2023
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7
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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