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5 Written Questions

5 Matching Questions

  1. Wavelength
  2. Inputs of the Calvin cycle
  3. C4 plants
  4. Inputs of the light reactions
  5. Photoautotrophs
  1. a Organisms that produce organic molecules from inorganic molecules using the energy of light
  2. b The distance between the crest of two adjacent waves
  3. c Alternate modes of carbon fixation have evolved that save water without shutting down photosynthesis. Preced the Calvin cycle by first fixing CO2 into a four-carbon compound. Keeps its stromata mostly closed
  4. d CO2
  5. e Energy from light, water, ADP + P, NADP+

5 Multiple Choice Questions

  1. Sugar, NADP+, ADP + P
  2. A series of chemical reactions uses energy from ATP to rearrage the atoms in the five G3P molecules (15 carbons total), forming three RuBP molecules (15 carbons). These can start another turn of the cycle
  3. Consists of Carbon fixation, reduction, release of G3P, and regeneration of RuBP. Using carbon from CO2, electrons from NADPH, and energy from ATP, the cycle constructs G#P, which is used to build glucose and other organic molecules
  4. Carbon fixation
  5. Tiny pores where carbon enters and oxygen exits

5 True/False Questions

  1. 2nd step of the Calvin cycleRelease of one molecule of G3P


  2. PhotosynthesisConsists of a number of light-harvesting complexes surrounding a reaction center complex


  3. PhotorespirationRubisco combines CO2 with a five-carbon sugar called ribulose bisphosphate (RuBP). The unstable product splits into two molecules of the three-carbon organic acid, 3-phosphoglyceric acid (3-PGA). For three CO3 entering, six 3-PGA result


  4. ChlorophyllA light-absorbing pigment in the chloroplasts that plays a central role in the chloroplasts


  5. Light reactionsAbsorb solar energy and convert it to chemical energy stored in ATP and NADPH


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