Organelles are entities within a eukaryotic cell that have a specialised function. Examples of organelles include the nucleus, the endoplasmic reticulum, the Golgi, mitochondria, vacuoles or ...

The endoplasmic reticulum (ER), extending throughout the cytoplasm of eukaryotic cells, is a central organelle involved in lipid metabolism, Ca 2+ homeostasis, and synthesis and folding of secretory ...

Cell membrane, surrounded by cell wall. Cell contents Cytoplasm, cell organelles include mitochondria, ribosomes and chloroplasts in plants. Cytoplasm, ribosomes present; there are no mitochondria ...

Feb. 10, 2025 — Influenza A virus particles strategically adapt their shape -- to become either spheres or larger filaments -- to favor their ability to infect cells depending on environmental ...

Cell signalling is the mechanism by which stimuli are transmitted via a signalling cascade to effector molecules that orchestrate the appropriate response. Types of cell signalling pathways ...

Feb. 4, 2025 — Research has shown that a potential new targeted therapy for childhood brain cancer is effective in infiltrating and killing tumor cells in preclinical models tested in mice.

Our comparative approach suggests a fundamental contribution of local dedifferentiation -rather than mobilization of resident undifferentiated stem cells- as an important cellular mechanism ...

Biologists had long believed that bringing order and organization to the chaos of molecules inside a cell depended on membrane-bound compartments called organelles, such as the mitochondria.