Supriya N

Bilayer Cell Membrane

The bilayer cell membrane is a membranous structure, which consists of two phospholipid layer. Thus, a cell membrane also refers to as a phospholipid bilayer membrane. A cell membrane is composed of many phospholipid molecules. A structure of a phospholipid molecule consists of hydrophilic head, a phosphate molecule, a glycerol molecule and two hydrophobic fatty …

Bilayer Cell Membrane Read More »

Clostridium botulinum

Clostridium botulinum is clinically significant bacteria, which cause a very rare but a severe disease called “Botulism”. It produces a particular type of exotoxin that affects the nervous system by inhibiting the activity of neuromuscular junction. The botulinum toxin thus behaves as a neurotoxin that blocks the release of a neurotransmitter refers as “Acetylcholine”. Acetylcholine …

Clostridium botulinum Read More »

Botulism Disease

Botulism disease is caused by a bacterial agent (Clostridium botulinum) which produces an exotoxin. Clostridium botulinum causes bacterial food poisoning or intoxication by the release of exotoxin. Exotoxin acts as a neurotoxin that disables the normal functioning of the nervous system. Thus, an exotoxin produced by Clostridium botulinum refers as a Botulinum neurotoxin, which blocks the …

Botulism Disease Read More »

Excision Repair

Excision repair is one of the types of DNA repair systems, which is an enzymatic process and follows a cut, copy and paste mechanism. A cutting mechanism involves, removal of the damaged part or unusual bases by the specific enzymes like glycosylases and helicases. Then a copying mechanism consists of an enzyme DNA-polymerase I, uses …

Excision Repair Read More »

Gynoecium

Gynoecium also refers as “Carpel” or “Pistil” which primarily consist of three structures, namely stigma, style and ovary. It is the female reproductive part of the flower which carries the female gametes or ovules within an ovary. On the base of the gynoecium, pedicle or thalamus is present which provides support to the female reproductive …

Gynoecium Read More »