Quick Notes on Mitochondria:- 1. Introduction to Mitochondria in Cell 2. Origin of Mitochondria in Cell 3. Structure 4. Function. Introduction to Mitochondria in Cell: Mitochondria are membrane bound cell organelles, associated with cellular respiration, the source of energy, being termed as power houses of cell. Mitochondria, discovered by Benda (1898), are present in eukaryotic cells. These are bean-shaped organelles, [...]
The following points highlight the two main types of organellar DNA in cell. The types are: 1. Chloroplast DNA (cp DNA) 2. Mitochondrial DNA (mt DNA). Organellar DNA: Type # 1. Chloroplast DNA (cp DNA): Each chloroplast contains 20-200 copies of a circular double stranded DNA molecule, which may also be linear as found in maize, cp DNA is characterized [...]
In this article we will discuss about:- 1. Evolution of First Cell 2. Origin of Cell Membrane in First Cell 3. Evolution of Metabolism 4. Prokaryotic Cell. Evolution of First Cell: Early living cells were RNA life forms, self- replicating RNA covered by lipoprotein vesicles were the pre-prokaryotes, with time the proteins replaced the catalytic function of RNA, and DNA [...]