GENERAL HISTOLOGY

INTRODUCTION

CELL STRUCTURE

Question [CLICK ON ANY CHOICE TO KNOW THE RIGHT ANSWER]
Channels in the cell wall that allow the exchange of substances between adjacent cells.
A
Peroxisome
B
Plasmodesma
C
Plasmodesmata
D
Vacuole
Explanation: 

Detailed explanation-1: -Plasmodesmata: Plasmodesmata are the microscopic channels that traverse the cell walls of plant cells and allow transport and communication between the adjacent cells. They connect the cytoplasm of neighboring cells causing an exchange of materials and communication between the cells.

Detailed explanation-2: -Symplastic transport is mediated by plant specific structures called plasmodesmata, which are plasma membrane-lined pores that traverse the cell walls of adjacent cells thus connecting their cytoplasms.

Detailed explanation-3: -But a need for direct cell-cell communication remains. Thus, plant cells have only one class of intercellular junctions, plasmodesmata (singular, plasmodesma). Like gap junctions, they directly connect the cytoplasms of adjacent cells.

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