UNIT 9 Plant Biology
Essential ideas:
- Structure and function are correlated in the xylem of plants.
- Structure and function are correlated in the phloem of plants.
- Plants adapt their growth to environmental conditions.
- Reproduction in flowering plants is influenced by the biotic and abiotic ennvironment
Content |
Core Material |
Support Material |
Structure of leaves |
1. Leaf Structure Now try this QUIZLET to test your understanding |
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Vascular tissue Workbook 234 and 236 |
2. Plant stems and root preparation Watch this video which introduces different plant cells, xylem, phloem, pith, epidermis and even sclerenchyma which makes the strands that get stuck in your teeth when you eat celery. Make brief notes as you watch. Complete the following worksheet whilst watching the animation: 2. Xylem and Phloem analysis 3. Animation - Plant cells in roots and stems |
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Investigating transpiration Workbook 238 |
This circus of simple transpiration experiments will give you a good broad understanding of a range of practical methods which can be used to measure the rate of transpiration in plants. You will get the chance to assemble apparatus, evaluate the uncertainties of their measurements and identify limitations of the experiments. It is a good introduction to planning for the IA investigation. 4. Transpiration labs - good news though, no written report required! |
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Transpiration Workbook 237 |
Draw the structure of primary xylem vessels and use the hexagon cards to link the concepts involved in transpiration in a sort of mind map. (You may pair up for this activity) Use this Video and the images on the worksheet to help. 5. Transpiration worksheet 6. Hexagon cards |
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Xerophyte adaptations Workbook 239 |
Make brief summary notes about the transport of water in plants and the adaptations of xerophyte plants. 7. Xerophytes 8. IB Style question on xerophytes 9. (9.1) Transport in the xylem
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Weblink |
Phloem and translocation Workbook 240 |
Watch the following video as an introduction: Complete the notes blanks as we work through the presentation: 10. Phloem transport 10a. Notes blanks Complete the folowing explanations using your notes and textbook. 11. Phloem structure and function 12. Translocation experiments 13. (9.2) Translocation in the phloem |
VideoWeblink |
Growth in plants Workbook 243 and 244 and 245 |
Go to The biology place - BioCoach to learn about plant structure and growth: This presentation outlines the control of growth in plants: 14. (9.3) Growth in plants Use the links in the support material to complete this worksheet 14a. Plant and growth scaffold learning 15. Micropropagation activity Try this QUIZLET to test your knowledge. Review tropisms from grade 10 using this animation: Complete the question on this sheet to make notes on the role of auxins: 16. Auxins and plant growth 16a . Auxins eflux pumps - an explanation of how auxin moves in response to light Here is a good link to some summary notes on the role of auxins and some of the early experiments carried out on them |
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Reproduction in plants Workbook 246 and 250 |
Lab - Complete a flower dissection and make accurate diagrams of your dissection. 17a. Angiosperm dissection 17. (9.4) Plant reproduction 18. Angiosperm flower diagram Use this QUIZLET to relate structure to function of the angiosperm flower. Watch the following videos: 19. IB Style question Flower reproduction |
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Seeds, flowering and Phytochromes Workbook 247,248, 251 and 253 |
Use the scaffolded notes, the presentation and the support material to build your own notes: 20. Plant phylums and control of flowering 21. Scaffolded notes 22. Seeds, Phytochromes and the control of flowering activity |