factors affecting photosynthesis. 4.2.2.7 Phloem tissue is composed Define the term 0.5 Observe and draw phloem. Model plant vascular Prepared slides: of of of elongated living bundles using long phloem and ‘translocation’. Recap transport in plants and cells adapted for cardboard cylinders microscopes or Describe the structure summarise by labelling a translocation of sugars from and boxes. bioviewers. of phloem and relate diagram of a plant to show where they are produced by to its function. that water enters via the roots Estimate the scale of photosynthesis in the leaves and travels in the xylem to the the model from given Describe how sugar is to other parts of the plant for leaves; carbon dioxide enters data about xylem and transported to immediate use or storage. leaves via stomata; light is phloem. different parts of the Cell sap containing sugars absorbed by chlorophyll in plant. and other nutrients is able leaves; dissolved sugars are to move easily from one Explain why is transported from the leaves in phloem cell to the next as transported to other the phloem to other parts of the end walls have pores. parts of the plant. the plant. 4.2.2.8 Tobacco mosaic virus is a Define the term 1 Students research the effects Explore images of widespread plant pathogen of tobacco mosaic and disease on Rothamsted ‘communicable affecting many species of diseases’. rose black spot fungus. Research website. plants including tomatoes. It Describe the causes, Prepare advice on how gives a distinctive ‘mosaic’ symptoms and control horticulturists can control the pattern of discolouration on methods of tobacco spread of tobacco mosaic the leaves, which affects the mosaic disease and virus and rose black spot. growth of the plant due to rose black spot. WS 1.4 lack of photosynthesis. Rose black spot is a fungal disease where purple or
factors affecting photosynthesis. 4.2.2.7 Phloem tissue is composed of of elongated living cells adapted for translocation of sugars from where they are produced by photosynthesis in the leaves to other parts of the plant for immediate use or storage. Cell sap containing sugars and other nutrients is able to move easily from one phloem cell to the next as the end walls have pores. Define the term ‘translocation’. Describe the structure of phloem and relate to its function. Describe how sugar is transported to different parts of the plant. Explain why is transported to other parts of the plant. 0.5 Observe and draw phloem. Recap transport in plants and summarise by labelling a diagram of a plant to show that water enters via the roots and travels in the xylem to the leaves; carbon dioxide enters leaves via stomata; light is absorbed by chlorophyll in leaves; dissolved sugars are transported from the leaves in the phloem to other parts of the plant. Model plant vascular bundles using long cardboard cylinders and boxes. Estimate the scale of the model from given data about xylem and phloem. Prepared slides: of phloem and microscopes or bioviewers. 4.2.2.8 Tobacco mosaic virus is a widespread plant pathogen affecting many species of plants including tomatoes. It gives a distinctive ‘mosaic’ pattern of discolouration on the leaves, which affects the growth of the plant due to lack of photosynthesis. Rose black spot is a fungal disease where purple or Define the term ‘communicable diseases’. Describe the causes, symptoms and control methods of tobacco mosaic disease and rose black spot. 1 Students research the effects of tobacco mosaic and rose black spot fungus. Prepare advice on how horticulturists can control the spread of tobacco mosaic virus and rose black spot. WS 1.4 Explore images of disease on Rothamsted Research website.
AQA-8465-SOW-TOLD.DOCX