ZIMSEC O-Level Biology
8.5.3Transport
Transport in ZIMSEC O-Level Biology: what the syllabus expects you to know, the learning objectives and how to practise.
Subtopic79 practice questions4 lessons
Overview
Form 3. Osmosis is also covered here: the syllabus does not name it, but it explains water uptake, turgor and wilting (see the syllabus notes).
Learning objectives
What the syllabus expects you to be able to do.
- 8.5.3.1Describe the external structure of a flowering plant, distinguish monocotyledons from dicotyledons, and compare the internal structure of roots and stems (epidermis, cortex, vascular tissue, pith).
- 8.5.3.2State the functions of xylem (transport and support) and phloem (transport).
- 8.5.3.3Define transpiration and describe its functions, investigate the factors that affect its rate (surface area, distribution of stomata, temperature, wind, humidity, light intensity), and describe leaf adaptations that reduce water loss and the significance of wilting.
- 8.5.3.4Define translocation and describe the effects of ring-barking.
Lessons
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Osmosis
25 min
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Translocation: moving sugars in the phloem
25 min
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Transpiration
35 min
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Xylem, phloem and water uptake
30 min
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Sample question
A sample question on this topic. Answer it, check it, then read the worked answer.
Exam style
Turn Transport into a strength.
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