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HomeHomework HelpbiologyPlasmodesmata

Plasmodesmata

Plasmodesmata are microscopic channels that traverse the cell walls of plant cells, facilitating direct communication and transport of substances between adjacent cells. These structures allow for the exchange of nutrients, signaling molecules, and other small molecules, contributing to the overall coordination of plant tissue function.

intermediate
2 hours
Biology
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Overview

Plasmodesmata are essential structures in plant cells that facilitate communication and transport between adjacent cells. They are microscopic channels that traverse the cell wall, allowing for the movement of water, nutrients, and signaling molecules. Understanding plasmodesmata is crucial for stud...

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Key Terms

Cell Wall
A rigid layer that surrounds the cell membrane in plant cells, providing structure and support.

Example: The cell wall is made of cellulose.

Cytoplasm
The jelly-like substance within a cell, where organelles are suspended.

Example: Cytoplasm contains various organelles like mitochondria.

Diffusion
The process by which molecules spread from areas of high concentration to areas of low concentration.

Example: Oxygen diffuses into cells from the bloodstream.

Symplastic Pathway
The route taken by water and solutes through the cytoplasm of plant cells connected by plasmodesmata.

Example: Nutrients travel through the symplastic pathway to reach the roots.

Apoplastic Pathway
The route taken by water and solutes through the cell walls and intercellular spaces.

Example: Water can move through the apoplastic pathway without entering cells.

Signaling Molecules
Chemical substances that transmit information between cells.

Example: Hormones are signaling molecules that regulate plant growth.

Related Topics

Cell Membranes
Study of the structure and function of cell membranes, crucial for understanding transport.
intermediate
Plant Physiology
Explores how plants function, including nutrient uptake and growth processes.
intermediate
Plant Pathology
The study of plant diseases, including how they spread and affect plant health.
advanced

Key Concepts

cell communicationplant cellstransport mechanismscell wall structure