User:Pooja68/Sandbox

lysosomes:word coined by DE DUVE. it is derived from the greek word lyso which means digestive or breaking down and soma means body.primary function of this is digestive,cell ageing,cell death.secondary function is it can cause cancer,gout disease,pompe disease.all animals have lysosomes,plants sparingly have like barley,corn seed,onion.bacteria do not have lysosomes.in humans rbc do not have lysosomes.it is predominantly present in secretory cell,absorptive and excretory cell.there is no definate structure for lysosomes. it contains acid phosphatase and hydrolytic enzymes.lysosomal membrane is permeable to hydrogen inside and low molecular weight susbstances outside .it contains mainly 2 parts: limiting membrane and dense body. origin may be from extracellular cell,golgi apparatus,endoplasmic reticulum.its functions include: extracellular digestion,cell death,osteoblast cells etc. .....