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CAIE A-Level Biology AS 7.1.1 Plan Diagrams of Transverse Sections Questions

Review plan diagrams of herbaceous dicot transverse sections, choosing tissue-level labels and checking relative proportions without adding individual cell detail.

Syllabus
2028–2030
Course
Biology 9700
Level
AS

Exam points

  • Choose a leaf transverse-section plan that matches the stated palisade-to-spongy mesophyll thickness and the orientation of the upper surface.
  • Select tissue-level plan labels, such as epidermis, phloem and mesophyll, and omit individual xylem vessel elements from a leaf plan diagram.

CAIE A-Level Biology AS 7.1.1 Plan Diagrams of Transverse Sections Questions question 1

[Maximum number: 1]

dicotyledonous leaf has a palisade mesophyll layer that is approximately twice as thick as the spongy mesophyll layer.

Which plan diagram is correct?

A

upper surface of leaf

Figure for Question CAIE A-Level Biology AS 7.1.1 Plan Diagrams of Transverse Sections Questions question 1 — CAIE A-Level Biology AS
Figure for Question CAIE A-Level Biology AS 7.1.1 Plan Diagrams of Transverse Sections Questions question 1 — CAIE A-Level Biology AS
C

upper surface
of leaf

Figure for Question CAIE A-Level Biology AS 7.1.1 Plan Diagrams of Transverse Sections Questions question 1 — CAIE A-Level Biology AS
D

upper surface
of leaf

Figure for Question CAIE A-Level Biology AS 7.1.1 Plan Diagrams of Transverse Sections Questions question 1 — CAIE A-Level Biology AS
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