Question Acceptable Answer 7 B Int 2 The diagram shows the green water plant Elodea used in an experiment to Marks investigate photosynthesis. 2012 C Q1B Describe how the requirements for photosynthesis shown in the diagram are used in 5 photolysis and carbon fixation to produce oxygen and starch. Answer Max Mark P1 (energy) from lamp absorbed by chloroplast Elodea/plant/chlorophyll/ Max 3 P2 energy used to water P3 into H and O P4 energy used to produce ATP C1 CO2 in joins with H C2 using (energy from) ATP Max 3 C3 to form glucose C4 glucose molecules joined to produce starch (any conversion) 5 C5 enzyme controlled Int 2 (a) 2013 B Q5
Question Acceptable Answer 7 B Int 2 2012 C Q1B The diagram shows the green water plant Elodea used in an experiment to investigate photosynthesis. Marks Describe how the requirements for photosynthesis shown in the diagram are used in photolysis and carbon fixation to produce oxygen and starch. 5 Answer Max Mark P1 (energy) from lamp absorbed by Elodea/plant/chlorophyll/ chloroplast P2 energy used to water Max 3 P3 into H and O P4 energy used to produce ATP C1 CO2 in joins with H C2 using (energy from) ATP C3 to form glucose Max 3 C4 glucose molecules joined to produce starch (any conversion) C5 enzyme controlled 5 Int 2 2013 B Q5 (a)
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