Scelta multipla
If a cell’s lysosomes become damaged, which of the following is most likely to occur?
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5. Cell Components
Cell Junctions
Scelta multipla
In the context of cell junctions, which structures are primarily responsible for transmitting chemical or electrical messages between adjacent cells?
A
Gap junctions
B
Tight junctions
C
Desmosomes
D
Plasmodesmata
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Understand the function of each type of cell junction mentioned in the problem: Gap junctions, Tight junctions, Desmosomes, and Plasmodesmata.
Gap junctions are specialized structures that allow direct communication between adjacent cells by permitting the passage of ions, small molecules, and electrical signals. These are primarily found in animal cells.
Tight junctions create a seal between adjacent cells to prevent the leakage of substances across cell layers. They do not facilitate communication between cells.
Desmosomes are anchoring junctions that provide mechanical strength by holding cells together, but they do not transmit chemical or electrical messages.
Plasmodesmata are channels in plant cells that allow the movement of molecules and ions between adjacent cells, similar to gap junctions in animal cells. Identify that gap junctions (animal cells) and plasmodesmata (plant cells) are responsible for transmitting chemical or electrical messages.
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