which of the following statements about the dark reactions is true?\na. dark reactions occur in the…

which of the following statements about the dark reactions is true?\na. dark reactions occur in the thylakoids of chloroplasts.\nb. light energy is converted to chemical energy during the dark reactions.\nc. carbon dioxide is converted to sugar using atp and nadph during the dark reactions.\nd. all of the above

which of the following statements about the dark reactions is true?\na. dark reactions occur in the thylakoids of chloroplasts.\nb. light energy is converted to chemical energy during the dark reactions.\nc. carbon dioxide is converted to sugar using atp and nadph during the dark reactions.\nd. all of the above

Answer

Brief Explanations:

  • Statement a: Dark reactions (Calvin cycle) occur in the stroma of chloroplasts, not in the thylakoids. Thylakoids are the site of light - dependent reactions.
  • Statement b: Light energy is converted to chemical energy (in the form of ATP and NADPH) during light - dependent reactions, not dark reactions.
  • Statement c: In the dark reactions (Calvin cycle), carbon dioxide is fixed and using ATP (for energy) and NADPH (for reducing power), it is converted to sugar (glyceraldehyde - 3 - phosphate which can be used to make glucose).

Answer:

C. Carbon dioxide is converted to sugar using ATP and NADPH during the dark reactions.