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Introductory Biology Final - 3! 3부
샘플
이것은 샘플 연습 세트입니다. 보다 개인화된 시험 준비 경험을 위해:
또는
29. The Working Plant / Transport of Sugar / 문제 23
문제 23

During active phloem loading, sucrose enters companion cells through a symporter coupled to proton movement. What provides the immediate energy source that drives sucrose uptake against its concentration gradient?