what compound is formed from carbon dioxide in the calvin cycle?
In the Calvin cycle, carbon dioxide (CO2) is converted into a three-carbon compound called phosphoglycerate (PGA). This process, known as carbon fixation, occurs in the stroma of chloroplasts within plant cells during photosynthesis.
To get this answer, you can refer to the basic concept of the Calvin cycle and its role in photosynthesis. The Calvin cycle is a series of biochemical reactions that occurs in the chloroplasts of plants and some bacteria. It is responsible for converting carbon dioxide into organic molecules, specifically carbohydrates that can be used as energy sources.
During the Calvin cycle, CO2 molecules are combined with a five-carbon compound called ribulose-1,5-bisphosphate (RuBP). The enzyme responsible for this reaction is called RuBisCO, which catalyzes the carbon fixation process.
The resulting molecule is an unstable six-carbon compound that immediately splits into two molecules of PGA. This conversion of CO2 into PGA is the first step in the Calvin cycle, and it further undergoes several enzymatic reactions to eventually produce glucose and other carbohydrates.
In summary, in the Calvin cycle, carbon dioxide (CO2) is converted into phosphoglycerate (PGA), a three-carbon compound.
Since this is not my area of expertise, I searched Google under the key words "CO2 Calvin cycle" to get these possible sources:
http://en.wikipedia.org/wiki/Calvin_cycle
(Broken Link Removed)
http://www.mrs.umn.edu/~goochv/CellBio/lectures/darkrxn/darkrxn.html
http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CalvinCycle.html
http://www.pubmedcentral.nih.gov/articlerender.fcgi?artid=1270166
In the future, you can find the information you desire more quickly, if you use appropriate key words to do your own search.
I hope this helps. Thanks for asking.