What you’ll learn11 learning objectivesChoose one objective for a focused lesson, or study the complete topic.6.1.1Photosynthesis as the process by which• Describe photosynthesis as the process by which plants synthesise carbohydrates from raw materials using energy from lightSyllabus objective6.1.2Word equation for photosynthesis• State the word equation for photosynthesis as: carbon dioxide + water → glucose + oxygen in the presence of light and chlorophyllSyllabus objective6.1.3Chlorophyll is a green pigment that is• State that chlorophyll is a green pigment that is found in chloroplastsSyllabus objective6.1.4Chlorophyll transfers energy• State that chlorophyll transfers energy from light into energy in chemicals, for the synthesis of carbohydratesSyllabus objective6.1.10Photosynthesis equation• State the balanced chemical equation for photosynthesis as: 6CO 2 + 6H2O → C6H12O6 + 6O2Syllabus objective6.1.5Subsequent use and storage• Outline the subsequent use and storage of the carbohydrates made in photosynthesis, limited to: (a) starch as an energy store (b) cellulose to build cell walls (c) glucose used in respiration to provide energy (d) sucrose for transport in the phloem (e) nectar to attract insects for pollinationSyllabus objective6.1.6Importance of: (a) nitrate ions• Explain the importance of: (a) nitrate ions for making amino acids (b) magnesium ions for making chlorophyllSyllabus objective6.1.7Need for chlorophyll, light and carbon• Investigate the need for chlorophyll, light and carbon dioxide for photosynthesis, using appropriate controlsSyllabus objective6.1.8Effects of varying light intensity• Investigate and describe the effects of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesisSyllabus objective6.1.9Effect of light and dark conditions on• Investigate and describe the effect of light and dark conditions on gas exchange in an aquatic plant using hydrogencarbonate indicator solutionSyllabus objective6.1.11Explain the limiting factors• Identify and explain the limiting factors of photosynthesis in different environmental conditionsSyllabus objective