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Question

Name two parts of the Endoplasmic Reticulum.
State the functions of ER . [5 MARKS]

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Solution

Naming: 2 Marks
The two parts of the Endoplasmic Reticulum are
a) The Smooth Endoplasmic Reticulum
b) The Rough Endolasmic Reticulum

Listing functions: 3 Marks
  • Helps in transporting materials from one part to other to the inside of the cell.
  • Acts as a skeletal framework and provides mechanical strength to the cytoplasmic matrix.
  • Provides larger surface area for synthesis of various metabolic activities.
  • It contains various enzymes which act as catalysts in synthesis of lipids and proteins.
  • SER is also involved in the process of detoxification of drugs and poison.

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