Term
| Name the two stages of photosynthesis. |
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Definition
| light reaction and carbon fixation |
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Term
| What is the energy change in photosynthesis? |
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Definition
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Term
| Name the green pigment that traps light energy for photosynthesis. |
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Definition
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Term
| What two events happen in the light reactions in photosynthesis? |
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Definition
| water is split into hydrogen and oxygen & ATP is regenerated |
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Term
| What two chemicals are made in the light reactions but used in the carbon fixation stage of photosynthesis? |
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Definition
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Term
| What is the product of the carbon fixationstage of photosynthesis? |
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Definition
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Term
| What are the three fates of glucose made by photosynthesis? |
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Definition
| used in respiration, stored as starch, used to make the structural carbohydrate cellulose for plant cell walls |
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Term
| Name the three limiting factors of photosynthesis. |
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Definition
| carbon dioxide concentration, light intensity and temperature. |
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Term
| What effect will increasing the concentration of carbon dioxide have on the rate of photosynthesis ? |
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Definition
| increase rate of photosynthesis |
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Term
| What is the effect of low temperatures on the rate of photosynthesis? |
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Definition
| slows the rate of photosynthesis |
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Term
| Why do high temperatures stop photosynthesis? |
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Definition
| the enzymes controlling photosynthesis are denatured and do not work |
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Term
| Explain why an aqautic plant such as elodea is good in experiments measuring rate of photsynthesis. |
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Definition
| the bubbles of oxygen gas produced can be counted |
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Term
| What can horticulturalists do to achieve optimum photosynthesis and therefore optimum plant growth? |
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Definition
| grow plants in green house with extra lighting / heating |
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