6 syllabus statements

6 syllabus statements

• 1.
  09/04/2016 6. Plant Nutrition Syllabusstatements Statements from Cambridge IGCSE Chemistry syllabus 0610 (for exams in 2016 – 2018)
• 2.
  6.1 Photosynthesis • Definephotosynthesis as the process by which plants manufacture carbohydrates from raw materials using energy from light • State the word equation for photosynthesis: carbon dioxide + water → glucose + oxygen, in the presence of light and chlorophyll • State the balanced chemical equation for photosynthesis
• 3.
  6.1 Photosynthesis • Explainthat chlorophyll transfers light energy into chemical energy in molecules, for the synthesis of carbohydrates • Outline the subsequent use and storage of the carbohydrates made in photosynthesis • Investigate the necessity for chlorophyll, light and carbon dioxide for photosynthesis, using appropriate controls
• 4.
  6.1 Photosynthesis • Investigateand describe the effects of varying light intensity, carbon dioxide concentration and temperature on the rate of photosynthesis, e.g. in submerged aquatic plants • Define the term limiting factor as something present in the environment in such short supply that it restricts life processes • Identify and explain the limiting factors of photosynthesis in different environmental conditions
• 5.
  6.1 Photosynthesis • Describethe use of carbon dioxide enrichment, optimum light and optimum temperatures in glasshouses in temperate and tropical countries • Use hydrogencarbonate indicator solution to investigate the effect of gas exchange of an aquatic plant kept in the light and in the dark
• 6.
  6.2 Leaf structure •Identify chloroplasts, cuticle, guard cells and stomata, upper and lower epidermis, palisade mesophyll, spongy mesophyll, vascular bundles, xylem and phloem in leaves of a dicotyledonous plant • Explain how the internal structure of a leaf is adapted for photosynthesis
• 7.
  6.3 Mineral requirements •Describe the importance of: – nitrate ions for making amino acids – magnesium ions for making chlorophyll • Explain the effects of nitrate ion and magnesium ion deficiency on plant growth