Write 3 function of RER
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1. Zymogens of lysosome enzymes are
synthesised by RER.
2. It possess ribophorins for holding ribosomes over it.
3. Luminal side of RER possess enzymes for processing polypeptide synthesised by attached ribosome.
synthesised by RER.
2. It possess ribophorins for holding ribosomes over it.
3. Luminal side of RER possess enzymes for processing polypeptide synthesised by attached ribosome.
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The major functions are the following:
(a) Common to both ER.
(i) Forms the skeletal framework.
(ii) Active transport of cellular materials.
(iii) Metabolic activities due to presence of different enzymes.
(iv) Provides increased surface area for cellular reactions.
(v) Formation of nuclear membrane during cell division.
(b) Function of Smooth ER.
(i) Lipid synthesis
(ii) Glycogen synthesis
(iii) Steroid synthesis like cholesterol, progesterone, testosterone, etc.
(c) Function of Round ER
(i) It provides site for protein synthesis.
(ii) It helps in transport of proteins.
(a) Common to both ER.
(i) Forms the skeletal framework.
(ii) Active transport of cellular materials.
(iii) Metabolic activities due to presence of different enzymes.
(iv) Provides increased surface area for cellular reactions.
(v) Formation of nuclear membrane during cell division.
(b) Function of Smooth ER.
(i) Lipid synthesis
(ii) Glycogen synthesis
(iii) Steroid synthesis like cholesterol, progesterone, testosterone, etc.
(c) Function of Round ER
(i) It provides site for protein synthesis.
(ii) It helps in transport of proteins.
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