The leaf is the organ of Explain why are more Label a diagram of a cross reasons why there are spider plants, kettle, photosynthesis. stomata on the lower surface section through a leaf. more stomata on the beakers, nail varnish, of a leaf. lower surface. slides, coverslips and Examples of tissues in Describe how the tissues are microscopes. a leaf: epidermis, Describe the role of stomata adapted for their role in Draw the arrangement palisade and spongy and guard cells to control photosynthesis. of stomata and guard Demo: 2 cylindrical mesophyll, water loss and gas cells observed. balloons, sellotape. Investigate the arrangement of phloem, guard cells exchange. stomata and suggest reasons and stomata. How Calculate stomatal density. for this distribution. these tissues are 4.2.3.1 Calculate stomatal density adapted for their Rap: using data provided or from function. direct observations. Demonstrate how guard cells open and close the stomata. Observe the video clip showing stomata. Explain how the guard cells and stomata control water loss and gas exchange. Listen to the rap photosynthesis and leaf structure. 4.2.3.1 Plant transport Describe the organs that 1 Demonstrate capillary action Evaluate the use of a Demonstrate long systems make up the plant transport using in a long capillary tube model to show water piece of capillary 4.2.3.2 system. and coloured dye. tubing supported in
4.2.3.1 The leaf is the organ of photosynthesis. Examples of tissues in a leaf: epidermis, palisade and spongy mesophyll, phloem, guard cells and stomata. How these tissues are adapted for their function. Explain why are more stomata on the lower surface of a leaf. Describe the role of stomata and guard cells to control water loss and gas exchange. Calculate stomatal density. Label a diagram of a cross section through a leaf. Describe how the tissues are adapted for their role in photosynthesis. Investigate the arrangement of stomata and suggest reasons for this distribution. Calculate stomatal density using data provided or from direct observations. Demonstrate how guard cells open and close the stomata. Observe the video clip showing stomata. Explain how the guard cells and stomata control water loss and gas exchange. Listen to the rap photosynthesis and leaf structure. reasons why there are more stomata on the lower surface. Draw the arrangement of stomata and guard cells observed. spider plants, kettle, beakers, nail varnish, slides, coverslips and microscopes. Demo: 2 cylindrical balloons, sellotape. Rap: 4.2.3.1 4.2.3.2 Plant transport systems Describe the organs that make up the plant transport system. 1 Demonstrate capillary action using in a long capillary tube and coloured dye. Evaluate the use of a model to show water Demonstrate long piece of capillary tubing supported in
AQA-8464-SOW-ORG.DOCX