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Photosynthesis: light-dependent and light-independent reactions

Energy transfers · Lesson 1 of 3

Lesson 1 of 3

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Lesson 1 of 3 · Energy transfers

Photosynthesis: light-dependent and light-independent reactions

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By the end you’ll be able to

describe the ultrastructure of the chloroplast and relate the roles of thylakoid membranes, grana, lamellae, stroma and photosystems to photosynthesis
state the balanced equation for photosynthesis and explain how light energy is transferred into chemical energy in ATP and reduced NADP during the light-dependent reaction

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explain the light-independent reaction as a cycle in which carbon dioxide is fixed to ribulose bisphosphate (RuBP), glycerate 3-phosphate (GP) is reduced to triose phosphate (TP), and RuBP is regenerated using ATP and reduced NADP

calculate, interpret and evaluate the effects of limiting factors, including light intensity, carbon dioxide concentration and temperature, on the rate of photosynthesis

interpret and evaluate experimental methods for measuring photosynthetic rate, including oxygen production, carbon dioxide uptake, decolorisation of indicators and chromatographic separation of photosynthetic pigments

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