Form and Function B.7 Transport (id: 9b5e89a3d)

本题目来源于试卷: Form and Function B.7 Transport，类别为 IB生物学

[单选题]
The diagram shows sucrose bein9o(o*fru9x2e w fzic 7g passively loaded into the sieve tube unaided,t4+1a. jpbdu hy4,nl0azyafus8 p5 3u before being transported around the plant. tuf3z.bpn0sa4 5apu1j8hl, 4y d+a uy

Which structure is labelled X?

A. Plasmodesmata
B. Proton pump
C. Co-transporter protein
D. Stomata


参考答案:  A


本题详细解析:

微信扫一扫，分享更方便