Cell

Camillo Golgi (1898) first observed densely stained reticular structures near the nucleus. These were later named Golgi bodies after him. They consist of many flat,…

Electron microscopic studies of eukaryotic cells reveal the presence of a network or reticulum of tiny tubular structures scattered in the cytoplasm that is called…

While each of the membranous organelles is distinct in terms of its structure and function, many of these are considered together as an endomembrane system…

A non living rigid structure called the cell wall forms an outer covering for the plasma membrane of fungi and plants. Cell wall not, only…

The detailed structure of the membrane was studied only after the advent of the electron microscope in the 1950s. Meanwhile, chemical studies on the cell…

The Eukaryotic Cells include all the protists, plants, animals and fungi. In eukaryotic cells, there is an extensive compartmentalization of cytoplasm through the presence of…

Nucleotide: A nucleotide is formed when one molecule of nucleoside unites with one molecule of phosphate. Adenosine monophosphatc is united with a phosphate to form…

Nucleoside: A nucleoside is formed when a pentose sugar (Ribose or De-oxy-ribose) is added with a nitrogen base (Adenine, Guanine, Thymine, Cytosine, Uracil) Nucleoside may…

Nucleic acid: Nucleic acid is a very important biochemical substance for every organism. Occurance: Chromosome, plastid, nucleolus, mitochondria, ribosome and cytoplasm. Types: Nucleic acid is…

The cell wall is present in all prokaryotes cells. The genetic material is naked, i.e. not enveloped by a nuclear membrane. Ribosomes Bodies: In prokaryotes cells,…