Question Part B: Application Questions 3. Which of the following contains more chemical potential energy and why? a. One molecule of NADP+, or one molecule of NADPH? b. Three molecules of CO2 or one molecule of glyceraldehyde-3-phosphate (G3P )? 4. During the Calvin Cycle plants "fix" carbon atoms by reacting carbon dioxide with an organic molecule called RuBP. For (a) (b) and (e) below, consider the steps of the Calvin Cycle required to produce one molecule of glyceraldehyde-3-phosphate. a. How many carbon atoms are "fixed” during the production of one molecule of glyceraldehyde-3-phosphate? Where do these carbons come from? b. Plant cells store excess glucose produced during photosynthesis in the form of starch. Starch is a polysaccharide consisting of a large number of glucose units joined by glycosidic bonds. How many glyceraldehyde-3-phosphate molecules would it take to produce a single starch molecule consisting of 1300 glucose units? Explain. c. How many carbon atoms must be fixed during the Calvin cycle in order to produce the starch molecule described in (b) above containing 1300 glucose units?

6DIYD7 The Asker · Biology

Transcribed Image Text: Part B: Application Questions 3. Which of the following contains more chemical potential energy and why? a. One molecule of NADP+, or one molecule of NADPH? b. Three molecules of CO2 or one molecule of glyceraldehyde-3-phosphate (G3P )? 4. During the Calvin Cycle plants "fix" carbon atoms by reacting carbon dioxide with an organic molecule called RuBP. For (a) (b) and (e) below, consider the steps of the Calvin Cycle required to produce one molecule of glyceraldehyde-3-phosphate. a. How many carbon atoms are "fixed” during the production of one molecule of glyceraldehyde-3-phosphate? Where do these carbons come from? b. Plant cells store excess glucose produced during photosynthesis in the form of starch. Starch is a polysaccharide consisting of a large number of glucose units joined by glycosidic bonds. How many glyceraldehyde-3-phosphate molecules would it take to produce a single starch molecule consisting of 1300 glucose units? Explain. c. How many carbon atoms must be fixed during the Calvin cycle in order to produce the starch molecule described in (b) above containing 1300 glucose units?
More
Transcribed Image Text: Part B: Application Questions 3. Which of the following contains more chemical potential energy and why? a. One molecule of NADP+, or one molecule of NADPH? b. Three molecules of CO2 or one molecule of glyceraldehyde-3-phosphate (G3P )? 4. During the Calvin Cycle plants "fix" carbon atoms by reacting carbon dioxide with an organic molecule called RuBP. For (a) (b) and (e) below, consider the steps of the Calvin Cycle required to produce one molecule of glyceraldehyde-3-phosphate. a. How many carbon atoms are "fixed” during the production of one molecule of glyceraldehyde-3-phosphate? Where do these carbons come from? b. Plant cells store excess glucose produced during photosynthesis in the form of starch. Starch is a polysaccharide consisting of a large number of glucose units joined by glycosidic bonds. How many glyceraldehyde-3-phosphate molecules would it take to produce a single starch molecule consisting of 1300 glucose units? Explain. c. How many carbon atoms must be fixed during the Calvin cycle in order to produce the starch molecule described in (b) above containing 1300 glucose units?
Community Answer
CWUKH3

3) a) One molecule of NADPH has more potential chemical energy than NADP+.   Explanation: NADPH has more energy compared to NADP+, because NADPH is in reduced state (high energy form), whereas NADP+ is in oxidized state (low energy form). NADP+ obtains electron and hydrogen ion to form NADPH.   b) One molecule of Glyceraldehyde 3 phosphate has more potential chemical energy than 3 molecules of carbon dioxide.   Explanation: In the Calvin cycle, one molecule of G3P (Glyceraldehyde 3 Phosphate) is formed by 3 molecules of CO2 (carbon dioxide). Also, ATP and NADPH are required for G3P synthesis. Thus, G3P has more energy compared to 3 molecules of CO2.     4) a) Three carbon atoms are fixed during production of one molecule of G3P. And these carbon ato ... See the full answer