write the type of lysosome
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Answer:
Types of Lysosomes
There are two main types, these include:
Primary lysosomes - are formed from Golgi apparatus appearing as small vesicles. Although primary lysosomes are popular on Golgi apparatus, they also occur as granulocytes and monocytes. These lysosomes are surrounded by a single phospholipid layer and contain acid hydrolases.
The pH value of the acid in these vesicles is important in that its changes activate or deactivate the enzymes. Ultimately, most of the primary granules will fuse with phagosomes, which results in the formation of secondary lysosomes.
Secondary lysosomes - are formed when primary lysosomes fuse with phagosomes/pinosome (they are also referred to a endosomes). The fusion also causes the previously inactive enzymes to be activated and capable of digesting such biomolecules as nucleic acids and lipids among others.
Compared to primary lysosomes, secondary are larger in size and capable of releasing their content (enzymes) outside the cells where they degrade foreign material.
A majority of lysosomal enzymes function inside the acidic environment, which is why they are referred to a acid hydrolases. They contain about 45 enzymes that are grouped in to six main categories:
Nucleases - Nucleases are important enzymes that hydrolyze nucleic acids. Nucleases are divided in to deoxyribonuclease (acts on DNA) and ribonuclease which hydrolyses RNA. Hydrolysis action on nucleic acids results in the production of sugars, nitrogen bases as well as phosphates.
Proteases - Proteases includes enzymes like collagenase and peptidases that acts on proteins converting them to amino acids
Glycosidases - Glycosidases like beta galactosidase act on the glycosidic bonds of polysaccharides converting polysaccharides to monosaccharides. For instance, the enzyme galactosidase acts on such bonds converting lactose to glucose and galactose.
Phosphatases - Good examples of Phosphatases are acid phosphodiesterases. These are important enzymes that act on organic compounds releaing phosphate in the process. However, the compound has to have a phosphate group.
Lipases - Lipases include esterases and phospholipiases that act on lipids to produce acids and alcohol
Sulphatases - Sulphatases are enzymes that act on organic compounds to release sulphates
* Lysosomes cannot digest themselves - Most of the proteins present in its membrane contain high amounts of carbohydrate-sugar groups. Because of the present of these groups, digestive enzymes are unable to digest the proteins present on the membrane.
Answer:
There are two types of lysosomes; secretory lysosomes and conventional ones. Conventional lysosomes are involved in the dismantling and re-cycling of various substrates presented to them through endocytocis, phagocytosis and by autophagosomes. They are responsible for returning many amino acids to the system.