In  the Calvin cycle, which occurs in
   the  stroma,  the  ATP  and  NADPH  from the light reactions drive the
   synthesis of sugars.
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   In  most  plants, three molecules of CO[2] that enter the Calvin cycle
   produces  one molecule of G3P (a three-carbon sugar); these are called
   C3 plants.
<P>
   Two molecules of G3P can combine to form one glucose.
<P>
   Review:  <A ClAsS=ACT Href="http://media.pearsoncmg.com/bc/bc_campbell_biology_7/media/activities/load.html?10&amp;E" oNClick="popact('http://media.pearsoncmg.com/bc/bc_campbell_biology_7/media/activities/load.html?10&amp;E');txtcolor('c32','gray');return false;" Id=c32><iMg sRc="/images/tutorial.gif" aLt='' boRDer=0></A>