Photosynthesis Reaction Questions
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1) Photosynthesis is estimated to produce 339.99999 g (dry weight) of plant matter per square meter, 50% of which is carbon. Calculate the total number of grams of carbon "fixed" each year by 1000 square meters.
2) The photosynthetic reaction can be represented as:
6CO2 + 6H2O -> C6H12O6 + 6O2
Of the glucose produced, 40.0% is used by the plant to fuel respiration; the rest is converted to plant matter. Calculate the total moles of glucose produced annually in our reference 1000 square meter area.
3) Each mole of glucose produced represents the absorption of 2802.999 kJ of solar energy. If the average energy available from the sunlight over an eight-month period is 1.0 kJ/cm2 per day, what percentage of the incident solar energy is converted to chemical energy in our 1000 square meter area?
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Solution Summary
200 words to answer 3 questions on total carbon grams photosynthesized each year, moles of glucose produced during that and how much incident solar energy is converted by the process.
Solution Preview
1.
(339.99999 g / 1 m^2)(1000 m^2)(0.5) = 170,000 g C
2.
Since 1 mol of glucose has 72.06 g C in it, we can calculate mol of glucose in 170,000 g C.
(1 mol glucose/72.06 g C)(170,000 g C) = 2359.145 mol glucose
But, only 60% of the glucose formed is converted into plant matter. ...
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