Cytoplasmic threads traversing pores in adjacent plant cell walls are designated as___________?
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Answer: C. Plasmodesmata
Explanation
Plasmodesmata are microscopic cytoplasmic channels passing directly through pores in adjacent plant cell walls. These specialized structures allow direct biochemical communication and transport between neighboring plant cells. The continuous cytoplasmic connection unites individual plant cells into a coordinated functional transport system. Plant cells are encased in rigid cellulose walls that would otherwise isolate them from one another. Plasmodesmata enable the symplastic transport pathway where molecules move freely between cell cytoplasms. Plasma membranes of adjacent cells line these tiny channels ensuring controlled molecular exchange.
Viruses often exploit plasmodesmata to spread systemic infections rapidly throughout host plant tissues. Nutrients and signaling molecules travel through these channels to coordinate growth and development in plants. Botanists study cell junctions to understand how multicellular organisms maintain internal physiological coordination. Pseudopods are temporary cytoplasmic projections used by amoeboid cells for locomotion and particle engulfment. Symplasts refer to the entire interconnected network of plant cell cytoplasms linked by plasmodesmata. Pili are hair-like appendages found on bacterial surfaces used for attachment and genetic conjugation.
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