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  • Which of the following match is correct?Option: 1 Tubules: Oval or rounded bodies involved in the transport of molecules.<div class='qn

Which of the following match is correct?

Option: 1

Tubules: Oval or rounded bodies involved in the transport of molecules.


Option: 2

Tubules: Flat, interconnected sac-like parts of the ER


Option: 3

Tubules: Tubular extensions connected with cisternae or vesicles.


Option: 4

None of these


Answers (1)

best_answer

Components of the Endomembrane System: Endoplasmic Reticulum (ER)

 
  • Endoplasmic reticulum was discovered by Porter and Thomson in 1945. 
  • It is a series of interconnected membranous sacs and tubules. 
  • It can be connected with the nuclear membrane as well as the cell membrane. 
  • Endoplasmic reticulum divides the intercellular space into two compartments as luminal (inside the ER) and extra-luminal (rest of the cytoplasm)

 

Endoplasmic reticulum can exist in three forms:

(a) Cisternae: Flat, interconnected sac-like parts of the ER.
(b) Vesicles: Oval or rounded bodies involved in the transport of molecules.
(c) Tubules: Tubular extensions connected with cisternae or vesicles. 

 

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rishi.raj

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