객관식
Which of the following cell types are least sensitive to ionizing radiation damage?
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5. Cell Components
Cell Junctions
객관식
Cells that communicate with each other by direct contact typically use which type of cell junction?
A
Gap junctions
B
Desmosomes
C
Plasmodesmata
D
Tight junctions
검증된 단계별 안내1
Understand the concept of cell junctions: Cell junctions are specialized structures that connect cells to each other or to the extracellular matrix. They play a role in communication, adhesion, and maintaining tissue integrity.
Learn about the types of cell junctions: Gap junctions, desmosomes, plasmodesmata, and tight junctions are the main types. Each has a specific function in cellular communication and adhesion.
Focus on direct communication: Gap junctions are specialized for direct communication between adjacent cells. They allow ions, small molecules, and electrical signals to pass through protein channels called connexons.
Differentiate between the options: Desmosomes provide mechanical strength by anchoring cells together, plasmodesmata are plant-specific structures for communication, and tight junctions create a seal to prevent leakage between cells.
Conclude that gap junctions are the correct answer for direct communication between cells, as they facilitate the exchange of materials and signals efficiently.
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