The Plasma Membrane and Membrane Potential - Cell to Cell Adhesions - Some cells are directly linked by specialized cell junctions
4 important questions on The Plasma Membrane and Membrane Potential - Cell to Cell Adhesions - Some cells are directly linked by specialized cell junctions
In tissues where the cells lie close to one another, these tissues are linked together by 1 of what possible 3 types of specialised cell junctions?
tight junctions
gap junctions
How do desmosomes function to be described as adhering junctions?
Why are tight junctions are termed "impearmable junctions"? State what they are, their purpose and they are important
a tight connection between adjacent cells, that forms a seal that blocks substances from slipping through the space between them.Purpose is to form highly selective barriers between two regions of highly different chemical composition, forcing substances to move through the cell itself and not through gaps inbetween
important becuase harmful substances could enter places they shouldn't without tight junctions
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What are gap junctions?, movement of what size molecules do they allow?
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