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Draw a well-labelled diagram of ER showing its types.

GeneralClass 12AllAnswered 27 Mar 2026
Answer

[Diagram should show]:

  • Nucleus with nuclear pores
  • Rough ER: Cisternae studded with ribosomes
  • Smooth ER: Tubular network without ribosomes
  • Connection to nuclear envelope
  • Continuity between RER and SER

Key features to label:

  • Cisternae (flattened sacs in RER)
  • Tubules (in SER)
  • Ribosomes on RER
  • Lumen (internal space)
General · Class 12