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21 Cards in this Set
- Front
- Back
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Definition of Photosynthesis |
Conversion of solar energy into chemical energy |
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Where does photosynthesis occur? |
Chloroplast of the cell in the mesophyll of the leaf |
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How many chloroplasts are in mesophyll cell? |
30 to 40 |
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Stomata |
Pores through which CO2 enters and O2 leaves |
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Stroma |
Fluid within the chloroplast |
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Thylakoid membranes |
System of membranes that divides storm from thylakoid space, chlorophyll is located here |
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Grana |
Stack of thylakoid membranes |
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2 Sets of Reactions in Photosynthesis |
1. Light reactions (photo)
2. Calvin Cycle (synthesis) |
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Where does the oxygen we breathe come from? |
Water, Carbon dioxide is used to make sugar |
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Where do light reactions occur in photosynthesis? |
The thylakoid membranes |
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What do the light reactions produce, and what are the products for? |
ATP and NADPH, the Calvin Cycle |
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What are the light harvesting units in thylakoids called? |
Photosystems |
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What is a byproduct of the light cycle? |
O2 (oxygen) |
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What are photosystems made up of? |
Complex of proteins and pigments |
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Where does the Calvin Cycle occur, and what does it make? |
It occurs in the stroma, and it produces carbohydrates (sugar) |
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What are the three phases of the Calvin Cycle? |
1. Carbon fixation (Carboxylation)
2. Reduction
3. Regeneration of RuBp |
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What is the incorporation of carbon into organic molecules called? |
carbon fixation |
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What is the enzyme that incorporates CO2 in the Calvin Cycle? |
rubisco |
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To what is CO2 attached in the Calvin Cycle? |
5-carbon sugar ribulose biphosphate (RuBP) |
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How many molecules of CO2 must enter the cycle to produce one molecule of G3P (3 carbon sugar)? |
3 |
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What must be spent for the synthesis of one molecule of G3P? |
9 molecules of ATP, 6 molecules of NADPH |
