Scientists have solved a decade-long question about the mechanism that preserves the centromere, the hub that ensures DNA divides correctly during cell division.
Cell & Microbiology
19 hours ago
0
98
The correlation between serotonin and depression is highly debated and is relevant for diagnosis, treatment, and drug development. To better study this area, a Chinese team has now developed a fluorescent probe for imaging ...
Biochemistry
20 hours ago
0
4
Scientists at La Trobe University have discovered a new antibody-like molecule that could be used in therapy to prevent infection from multiple malaria parasite species.
Molecular & Computational biology
20 hours ago
0
21
A study has shown that a type of non-coding RNA molecule could play a role in the development of skin diseases—like eczema or psoriasis—and highlights an important molecular mechanism for driving genetic evolution.
Evolution
20 hours ago
0
29
Bacteria use their internal 24-hour clocks to anticipate the arrival of new seasons, according to research carried out with the assistance of an "ice bucket challenge."
Cell & Microbiology
20 hours ago
0
1
A novel approach to analyzing single-cell RNA sequencing (scRNA-seq) data has been unveiled by NUS researchers. This method promises to enhance both the precision and speed of data interpretation, potentially accelerating ...
Molecular & Computational biology
21 hours ago
0
12
Most animals live in intimate relationships with bacteria. Some of these bacteria live inside the cells of their hosts, but only very few are able to live inside cell organelles (structures inside the cell, like organs in ...
Plants & Animals
Sep 6, 2024
0
58
When Steve Carr, senior director of the Proteomics Platform at the Broad Institute of MIT and Harvard, began working in proteomics, the field was able to detect only the most abundant proteins in a given sample. In recent ...
Molecular & Computational biology
Sep 5, 2024
0
1
As antibiotic resistance becomes an increasingly serious threat to our health, the scientific and medical communities are searching for new medicines to fight infections. Researchers at Gladstone Institutes have just moved ...
Cell & Microbiology
Sep 5, 2024
0
36
Hundreds of millions of years ago, single cells joined forces to become multicellular organisms. At the foundation of this multicellular world is the cell surface: the plasma membrane surrounding each cell, where individual ...
Cell & Microbiology
Sep 5, 2024
0
39
The cell is the structural and functional unit of all known living organisms. It is the smallest unit of an organism that is classified as living, and is often called the building block of life. Some organisms, such as most bacteria, are unicellular (consist of a single cell). Other organisms, such as humans, are multicellular. (Humans have an estimated 100 trillion or 1014 cells; a typical cell size is 10 µm; a typical cell mass is 1 nanogram.) The largest known cell is an unfertilized ostrich egg cell.
In 1835 before the final cell theory was developed, a Czech Jan Evangelista Purkyně observed small "granules" while looking at the plant tissue through a microscope. The cell theory, first developed in 1839 by Matthias Jakob Schleiden and Theodor Schwann, states that all organisms are composed of one or more cells. All cells come from preexisting cells. Vital functions of an organism occur within cells, and all cells contain the hereditary information necessary for regulating cell functions and for transmitting information to the next generation of cells.
The word cell comes from the Latin cellula, meaning, a small room. The descriptive name for the smallest living biological structure was chosen by Robert Hooke in a book he published in 1665 when he compared the cork cells he saw through his microscope to the small rooms monks lived in.
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