Question

what is apical surface​

Answer 1

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❤ Epithelia cells are polarized with an apical surface that faces the lumen of a tube or the external environment and a basal surface that attaches to the basement membrane.❤

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Answer 2

Epithelia cells are polarized with an apical surface that faces the lumen of a tube or the external environment and a basal surface tat attaches to the basement membrane. The apical and basal surfaces perform different function and have unique biochemical comositions.