Archive | Eukaryotic Cell

Cytoskeleton is a three dimensional network of filamentous proteins that extend throughout the cytosol (= cytoplasmic matrix) of all eukaryotic cells. The cytoskeleton is closely involved in many processes including cell division, growth, maintenance of cell shape, differentiation, wall deposition, movement of organelles etc. Cytoskeleton consists of three types of elements: microtubules, microfilaments and intermediate filaments. They are visible only [...]

Read this article to learn about Micro bodies of Eukaryotic Cell ! Micro bodies are small cell organelles bounded by single membrane which absorb molecular oxygen and take part in oxidation other than those involved in respiration. Discovery: These submicroscopic bodies were observed for the first time in 1954 in the mouse kidney tubule cells with the help of electron [...]

Synonyms: Ribonucleoprotein (RNP) factories, Palade particles, protein factories, Claude's particles. As ribosomes are found in mitochondria and chloroplast, they are called organelle within organelle. Definition: Ribosomes are sub-microscopic, smallest, dense, membrane-less granular ribonucleoprotein organelles found in all living cells. History: A. Claude (1941), first observed ribosomes and called them as microsomes which were actually fragments of RER. Robinson and Brown [...]