Question

Part of endoplasmic reticulum present in a plasmodesma is called

• A. Desmotubule
• B. Cisterna
• C. Vesicle
• D. Myeloid body

Answer 1

The correct option is A Desmotubule

• Plasmodesmata are intercellular connections which are found only in plant and algal cells.
• These connections consist of pores or channels which connect the symplastic space in the plant.
• The airspace that separates the cells is known as desmotubule (flattened endoplasmic reticulum) which possesses a rigid membrane that runs through the length of the plasmodesmata.
• The cytoplasm of the cell lies between the cell membrane and the desmotubule where the entire plasmodesma is filled with the smooth endoplasmic reticulum of the linked cells.
• So, the correct answer is 'Desmotubule'.