light independent stage (calvin cycle)

Cards (23)

  • what is another name for the light independent reaction
    the Calvin cycle
  • Does the Calvin Cycle require light?

    No, it is the light independent reaction
  • what are the two products of the light dependent stage of photosynthesis
    ATP and reduced NADP
  • Where does the Calvin cycle take place?

    in the stroma of the chloroplast
  • what are the products from the light dependant stage of photosynthesis used for

    the fixation of carbon dioxide
  • what is ATP used for in the Calvin cycle
    energy source
  • what is the starting molecule for the Calvin cycle
    ribulose bisphosphate(RUBP)(5C)
  • how many carbon molecules are found in ribulose bisphosphate
    5
  • what is the first stage of the Calvin cycle
    carbon dioxide from the atmosphere is fixed with ribulose bisphosphate
  • what enzyme is used in the carbon fixation of ribulose bisphosphate

    Rubisco
  • what is formed from the fixation of carbon dioxide with ribulose bisphosphate
    a unstable 6C carbon compound
  • in the Calvin cycle what happens to the 6C compound

    it splits almost immediately into 2 molecules of glycerate-3-phosphate(3C)(GP)
  • what stage may not be shown as it happens to fast to be recognised
    the formation and splitting of the unstable 6C compound
  • what happens to glycerate-3-phosphate to become triose phosphate
    it will be reduced and phosphorylated
  • what is formed from glycerate-3-phosphate after it is phosphorylated and reduced

    2 triose phosphates
  • what is used to phosphorylate and reduce glycerate-3-phosphate
    reduced NADP and ATP
  • where does glycerate-3- phosphate obtain the inorganic phosphate to be phosphorylated
    the hydrolysis of ATP
  • where does glycerate-3-phosphate obtain the hydrogen to be reduced
    reduced NADP
  • what is removed from the two triose phosphates and for what reason

    1 carbon atom from the 6 available is removed from the Calvin cycle to be used to produced organic molecules such as glucose
  • what happens to the remaining 5 available carbon atoms in the carbon cycle after 1 carbon atom is removed from the the triose phosphates
    they are used to regenerate RUBP (ribulose bisphosphate) so the Calvin cycle can start again
  • what is an abbreviation used for ribulose bisphosphate
    RUBP
  • what is used to regenerate ribulose bisphosphate to resart the calvin cycle
    atp
  • What can triose phosphate be broken downt into

    carbohydrates , lipids and amino acids