Mitochondria- Definition, Properties, Structure, Functions

Mitochondria Structure

Mitochondria Properties Mitochondria is the cell organelle which is filamentous and granular structure. It is present in higher plants, animals, and some microorganisms.  It is absent in bacteria but is found in algae, protozoa, and fungi. To carry out the energy metabolism, mitochondria have got the lipoprotein framework.  It consists … Read more

Smooth Endoplasmic Reticulum- Structure and Functions

Smooth Endoplasmic Reticulum- Structure and Functions

Endoplasmic Reticulum (ER) In 1897, Garnier observed the Endoplasmic Reticulum (ER) with a light microscope. Ergastoplasm was the term coined by him. In 1945 Porter first reported the Endoplasmic Reticulum. It was discovered independently by Porter and Thompson. It is a continuous membrane system. At one end, it connects the … Read more

Detailed description of eukaryotic nucleus

Detailed description of eukaryotic nucleus

Nucleus The nucleus is a specialize membrane-bound structure or organelle. It is the controlling center of eukaryotic cells. It is a characteristic feature of eukaryotic cells and is absent in prokaryotes like bacteria and viruses. It contains most of the genetic material of an organism. Most of the eukaryotic cells … Read more

Capsule, Flagella, Pili (Fimbriae), Glycocalyx (Slime Layer)

Capsule, Flagella, Pili (Fimbriae), Glycocalyx (Slime Layer)

Capsule, Flagella, Pili (Fimbriae), Glycocalyx (Slime Layer) Capsule The capsule is a gelatinous layer covering the entire bacterium. It is composed of polysaccharide, except in the anthrax bacillus, which has a capsule of polymerized d-glutamic acid. The sugar components of the polysaccharide vary from one species of bacteria to another … Read more

Cell Inclusion Bodies

Cell inclusion Bodies

Cell inclusion Bodies Bacterial cell inclusion bodies are otherwise known as granules. Electron microscopic observation reported the presence of both organic and inorganic granules inside the bacterial cell. These granules function as energy storage and these are also involved in reducing osmotic pressure. Some of these granules are found freely … Read more