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Practice and master key high-school concepts with interactive flashcards and curriculum review.

Total Curriculum66concepts indexed

Mastered00% complete

Needs Review0flagged for practice

IGCSE Subjects4disciplines active

Concept 1 of 66active-transport, protein-carriers, concentration-gradient, respiration, ion-uptake, igcse-biology

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Active Transport

The movement of molecules or ions through a cell membrane against a concentration gradient, using energy released by respiration and protein carriers.

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