Biological cells often possess thin, hair-like protrusions on their surface known as cilia, which serve various functions ranging from movement to sensing environmental signals. Researchers from ...

Unlike other cellular sub-structures (for example, the nucleus, mitochondria, and endoplasmic reticulum), the synapse does not possess an enclosing membrane to aid in compartmentalization.

An electron micrograph therefore provides an excellent blueprint of a cell's inner structures. Other less powerful microscopy techniques coupled with organelle-specific stains have helped ...