3.5.1 - Photosynthesis

Question 1

light-independent reaction

Answer 1

• carbon dioxide reacts with ribulose bisphosphate (RuBP)
• produces two glycerate 3-phosphate (GP) using enzyme Rubisco
• GP reduced to triose phosphate (TP) using reduced NADP and energy from ATP
• triose phosphate converted to glucose or used to regenerate RuBP

Question 2

photoionisation

Answer 2

• chlorophyll absorbs light/light excites electrons in chlorophyll
• electrons are lost/chlorophyll becomes positively charged