Topic 8.3 Photosynthesis (AHL)

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Across
  1. 1. ribulose bisphosphate; a five-carbon carbohydrate that combines with CO2 to form two molecules of PGA in the first step of the Calvin Cycle (4)
  2. 9. Green pigments in plants algae and cyanobacteria that absorbs light energy used to carry out photosynthesis (11)
  3. 10. The first step of the Calvin cycle, in which carbon dioxide absorbed from the air is added to a Ribulose Bis Phosphate (13)
  4. 12. ________-_________ complex A complex of proteins associated with pigment molecules (including chlorophyll a, chlorophyll b, and carotenoids) that captures light energy and transfers it to reaction-center pigments in a photosystem. (5-10)
  5. 14. The fluid of the chloroplast surrounding the thylakoid membrane; involved in the synthesis of organic molecules from carbon dioxide and water (the light independent reactions) (6)
  6. 15. ________-_________ Reactions Enzyme driven reactions of photosynthesis in which energy from ATP and NADPH is used to fix CO2 into carbohydrate and regenerate RuBP (5-11)
  7. 16. Cycle reactions of photosynthesis in which energy from ATP and NADPH is used to fix CO2 into carbohydrate (6, 5)
  8. 17. A flattened membrane sac inside the chloroplast - site of light dependent reactions (9)
Down
  1. 2. The generation of ATP using the high energy electrons created by photolysis (20)
  2. 3. ___-___________ photophosphorylation Photophosphorylation which generates ATP by the transfer of electrons from PS I and results in the reduction of NADP to NADPH (3-6)
  3. 4. ___________ photophosphorylation The synthesis of ATP during photosynthesis, coupled to the cyclic passage of electrons to P700 (PS I) from P680 (PS II) and back. (6)
  4. 5. A technique that is used to separate the components of a mixture based on the tendency of each component to travel or be drawn across the surface of another material (14)
  5. 6. Functional and structural units of membrane bound proteins that carry out the primary photochemistry of photosynthesis: the absorption of light and the transfer of energy and electrons (11)
  6. 7. __________-__________ reactions Reactions of photosynthesis that use energy from light to produce ATP and NADPH (5-9)
  7. 8. yellow-orange accessory pigment in leaves (8)
  8. 11. Single celled photosynthetic organism used by Calvin to determine sequence of metabolic reactions in light independent reactions (9)
  9. 13. Enzyme which fixes CO2 to RuBP as first step of Calvin Cycle (7)