what are the functions of E.R and lysosomes
Answers
Answer:
Functions -
Endoplasmic Reticulum:
The endoplasmic reticulum serves many general functions, including the folding of protein molecules in sacs called cisternae and the transport of synthesized proteins in vesicles to the Golgi apparatus. Secretory proteins, mostly glycoproteins, are moved across the endoplasmic reticulum membrane. Proteins that are transported by the endoplasmic reticulum throughout the cell are marked with an address tag called a signal sequence.
Lysosomes:
Lysosomes contain a variety of enzymes, enabling the cell to break down various biomolecules it engulfs, including peptides, nucleic acids, carbohydrates, and lipids. Lysosomes are also called 'suicidal bags' of the cell because they contain lytic enzymes capable of digesting cells and unwanted materials. When lysosomes burst, the lytic enzymes within the organelle spill all over the cell, rupturing the cell membrane or cell wall and inducing the death of the cell.
Answer:
Endoplasmic Reticulum
A continuous membrane system that forms a series of flattened saces within the cytoplasm of eukaryotic cells and serves multiple functions being important particularly in the synthesis, folding,modification and transport of protein.
Lysosomes
They has three main functions :
The breakdown/digestion of macromolecules ( carbohydrates, lipids, protein and nucleic acid) cell membrane repairs and responses against foreign substance such as bacteria, viruses and other antigens.