Plants:

• Describe plant tissues (epidermal, palisade mesophyll, spongy mesophyll, xylem, phloem and meristem) and describe their functions
• Explain how the structure of plant tissues are related to their function within the leaf (plant organ) inc stomata and guard cells
• Recall the plant parts that form a plant organ system that transports substances around the plant
• Explain how root hair cells, xylem and phloem are adapted to their functions
• Describe the process of transpiration and translocation including the role of the different plant tissues
• Explain how the rate of transpiration can be affected by different factors (inc naming the factors)
• Describe the role of stomata and guard cells in the control of gas exchange and water loss
• Describe what happens in photosynthesis, including using a word equation and recognise the chemical formulas for carbon dioxide, water, oxygen & glucose
• Explain why photosynthesis is an endothermic reaction
• Recall the limiting factors of photosynthesis
• Explain how limiting factors affect the rate of photosynthesis, including graphical interpretation (limited to one factor)
• Explain how the limiting factors of photosynthesis interact, inc graphical interpretation (two/three factors)
• Explain how limiting factors are important to the economics of greenhouses, including data interpretation
• Explain and use inverse proportion in the context of photosynthesis
• Required practical 6: investigate the effect of light intensity on the rate of photosynthesis using an aquatic organism such as pondweed
• Describe how the glucose produced in photosynthesis is used by plants
• Required practical 8: investigate the effect of light or gravity on the growth of newly germinated seedling
• Explain the use of plant growth hormones are used in agriculture and horticulture (auxins, ethene and gibberellins)