What do you need to begin the light reaction The Calvin cycle uses CO 2 and the

What do you need to begin the light reaction the

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What do you need to begin the light reaction? The Calvin cycle uses CO 2 and the energy temporarily stored in ATP and NADPH to make the sugar glucose. Photosynthesis is a two stage process. As is depicted here, the energy from sunlight is needed to start photosynthesis. Understand the factors that affect photosynthesis: How is Photosynthesis impacted by light and temperature? Three factors can limit the speed of photosynthesis: light intensity, carbon dioxide concentration and temperature. Without enough light, a plant cannot photosynthesise very quickly, even if there is plenty of water and carbon dioxide. Increasing the light intensity will boost the speed of photosynthesis. What is photolysis? The decomposition or separation of molecules by the action of light. Where does gas exchange occur and what controls it? Gas exchange is the delivery of oxygen from the lungs to the bloodstream, and the elimination of carbon dioxide from the bloodstream to the lungs. Write the Photosynthesis equation and be able to explain it: 6CO 2 + 6H 2 O ------> C 6 H 12 O 6 + 6O 2 Sunlight energy Where: CO 2 = carbon dioxide
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H 2 O = water Light energy is required C 6 H 12 O 6 = glucose O 2 = oxygen
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  • Winter '17
  • Lori Shelton

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