The diagram shows a section through a root of a dicotyledonous plant. Which statement correctly describes the movement of water and solutes through this root?
A.
A layer of suberin causes water and solutes to move from the apoplast pathway into the symplast pathway.
B.
A layer of suberin causes water and solutes to move from the symplast pathway into the apoplast pathway.
C.
The tonoplast causes water and solutes to move from the symplast pathway into the apoplast pathway.
D.
The tonoplast causes water and solutes to move from the apoplast pathway into the symplast pathway.
Exam No：9700_w24_qp_13 Year：2024 Question No：29
Answer:
A
Knowledge points:
7.1.1 draw plan diagrams of transverse sections of stems, roots and leaves of herbaceous dicotyledonous plants from microscope slides and photomicrographs
7.1.2 describe the distribution of xylem and phloem in transverse sections of stems, roots and leaves of herbaceous dicotyledonous plants
7.1.3 draw and label xylem vessel elements, phloem sieve tube elements and companion cells from microscope slides, photomicrographs and electron micrographs
7.1.4 relate the structure of xylem vessel elements, phloem sieve tube elements and companion cells to their functions
Solution:
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