Question

Plasmodesmata can change in number, and when dilated can provide a passageway for A. macromolecules B. ribosomes C. chloroplasts D. mitochondria

Answer 1

Plasmodesmata can change in number, and when dilated can provide a passageway macromolecules

Plasmodesmata are essential for the intercellular transfer of both big informational macromolecules like proteins and smaller signaling chemicals in plant cells.

• Plasmodesmata are membrane-lined structures that offer a high-conductance, aqueous channel for the transportation of information in the form of chemicals and macromolecules, such as transcription factors, from cell to cell.
• The intimate interaction of the plasma membrane with the endoplasmic reticulum results in the formation of plasmodesmata.
• The degree to which a particular cell acts as an individual or as a component of the entire organism is determined by the distribution and unitary conductance of plasmodesmata as well as other positional variables that affect development.

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