Extracellular Interations

Bio 1140 slide 10 na 150 mmol l 1 na 1 mmol l 1 gill

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BIO 1140 – SLIDE 10 [Na+] = 150 mmol L-1 [Na+] < 1 mmol L-1 Gill tight junctions respond to low ion levels FW fish lose ions from body fluids to dilute environment Kwong et al. 2013 J Comp Physiol B 183, 203-213 Control water Low [Na+] water Relative claudin-b protein abundance Rate of Na+ loss (nmol g-1 h-1) Time (days) Control Low [Na+]
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BIO 1140 – SLIDE 11 Adhesive (anchoring) junctions Adherens junctions Connect to MFs Small areas or continuous zones of attachment in epithelia
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