Golgi apparatus –
Golgi apparatus stacks of alosly folded membranous sac.
- It is responsible for packaging modification and transport of protin so that it is also known as post office of the cell
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- Liner protein formed in the endoplasmic reticulum are package into vesicle which is known as secretory granules
- The vesicles are store and when needed move to the plasma membrane through which the protein are exported
- Vesicles – vesicles is a round structure in which enzyme, protein, lipid are present
Lysosomes –
– Lysosomes are one type of secretory vesicles formed by the Golgi apparatus due to packaging.
-Lysosomes are membrane enclose organelles or spherical shape sac filled with hydrolytic enzyme which are capable of broke down fragments of organelles.
-lysosomes may be damage its own by hydrolytic enzyme this process is known as autolysis and it is also known as suicidal bag of the cell.
– It act as a waste disposal or garbage system of the cell.
Ribosome-
-Ribosome is a complex of R-RNA & protein.
-Ribosome is cell organelles that help in synthesis of protein that are present on surface rough endoplasmic reticulum.
-They produce protein from amino acids this process is known as protein synthesis and ribosome is also known as protein factory.
-ribosome which are free flouting distributed in cytoplasm which is known as free ribosome.
-Ribosome which are attached on RER(Rough endo. Reticulum) which is known as bounded Ribosome.
Cytoskeleton-
-it is a network of protein fiber that gives mechanical support and strength of cell and maintains its shape.
-component of cytoskeleton.
-Cytoskeleton mainly composed of microtubules and micro filament.
Micro tubules –
It is thickest form of cytoskeleton made up from tubulin fibre.
- -its structure is long, hollow, cylindrical, tubules
Functions-
. it help in movement of matrial within cell.
. they form spindle fibre.
They centriole, flagella, cilia
Microfilaments-
-It is thinnest form made up long thread like filament.
-it helps in muscle contraction and relaxation.
-centriole made up of microtubules and where the centriole present in a pair which is called centrosome.
