Leaves: Structure and Transport Mechanisms
Explore the anatomy of leaves, their transport systems, and how water and nutrients move through plants. Learn about the roles of xylem tubes, stomata, and more in leaf function and photosynthesis.
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Presentation Transcript
True or False Starter True or False Starter 1. The waxy cuticle reduces water loss 2. The epidermis contains chloroplasts 3. Palisade cells are closely packed together to absorb as much light as possible 4. The spongy layer is tightly packed together to allow gases to move in and out 5. Stomata are formed by guard cells Extension: for each false sentence, how can you make it correct?
Starter Starter Extension: finish off the labelled diagram of the practical you did last lesson
Objectives Objectives Know how water is transported in leaves Describe the role of xylem tubes in water transport
Transport in leaves Transport in leaves So how does water and other nutrients get transported around the plant?
You will need: You will need: A white tile 1x piece of cut celery Hand Lens
The celery has been left in water containing a pink dye. This dye should show where the xylem vessels are. 1) Draw a diagram of a small piece of celery, labelling the xylem. 2) Use a hand lens to look at this close up. 3) Draw what you can see label the xylem vessels. 4) What do you think xylem vessels are for?
What affects photosynthesis? What affects photosynthesis? Read through the information on pages 60 61. Have a go at questions 8 14. Either write out the question or answer in full sentences.
Honey, Ive shrunk the Year 9s Honey, I ve shrunk the Year 9s Imagine you have been shrunk to the size of a cell. Write a short story describing your journey as a water molecule from soil to the leaf for photosynthesis use the information from the last few lessons to help you.
Bingo! Bingo! Roots Water Photosynthesis Carbon dioxide Glucose Light Xylem vessels Iodine Chlorophyll Starch Stomata Oxygen Chloroplast Guard cells
Task/Homework Task/Homework Draw a poster or leaflet about photosynthesis You must include: -What photosynthesis is -What photosynthesis needs and what it produces -Where it s carried out -The photosynthesis equation To be finished by next lesson Monday 9th November
