explain four
types of lysosomes
Answers
Answer:
Lysosomes pass through various stages in the same cell. The phenomenon is called polymorphism or existence of more than one morphological form. Depending upon their morphology and function, there are four types of lysosomes— primary, secondary, residual bodies and auto-phagic vacuoles.
Answer:
Lysosomes pass through various stages in the same cell. The phenomenon is called polymorphism or existence of more than one morphological form. Depending upon their morphology and function, there are four types of lysosomes— primary, secondary, residual bodies and auto-phagic vacuoles.
- Primary lysosomes - are formed from Golgi apparatus appearing as small vesicles. ... 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.
- Secondary lysosomes - are formed when primary lysosomes fuse with phagosomes/pinosome (they are also referred to a endosomes). ... Compared to primary lysosomes, secondary are larger in size and capable of releasing their content (enzymes) outside the cells where they degrade foreign material.
- Residual Bodies (Residual or Tertiary Lysosomes):
- They are those lysosomes in which only indigestible food materials have been left. ... Sometimes, residual bodies remain inside the cells due to failure of exocytosis and absence of some hydrolytic enzymes
Autophagy (a Greek word that means "self-eating") is a catabolic process in eukaryotic cells that delivers cytoplasmic components and organelles to the lysosomes for digestion. Lysosomes are specialized organelles that break up macromolecules, allowing the cell to reuse the materials.