$$$ \mathrm{~K} 1$$$ is a slide of a stained transverse section through a plant root. Draw a large plan diagram of the region of the root on $$$\mathrm{K} 1$$$ indicated by the shaded region in Fig. 2.1. Use a sharp pencil. Use one ruled label line and label to identify the endodermis.

Biology

IGCSE&ALevel

CAIE

Exam No：9700_s23_qp_32 Year：2023 Question No：2(a)(i)

Answer:

$\begin{array}{ll}1 & \text { minimum size ; } \\ 2 & \text { correct section of the root drawn and no cells drawn ; } \\ 3 & \text { draws the correct number of tissues ; } \\ 4 & \text { correct shape of the section; } \\ 5 & \text { label line and label to xylem; }\end{array}$

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

$$\( \mathrm{~K} 1\)$$ is a slide of a stained transverse section through a plant root. Draw a large plan diagram of the region of the root on $$\(\mathrm{K} 1\)$$ indicated by the shaded region in Fig. 2.1. Use a sharp pencil. Use one ruled label line and label to identify the endodermis.

Answer:

Knowledge points:

Solution:

$$\( \mathrm{~K} 1\)$$ is a slide of a stained transverse section through a plant root. Draw a large plan diagram of the region of the root on $$\(\mathrm{K} 1\)$$ indicated by the shaded region in Fig. 2.1. Use a sharp pencil. Use one ruled label line and label to identify the endodermis.

Answer:

Knowledge points:

Solution:

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