Term
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Definition
| the process in which carbon dioxide and water are converted into glucose, using the energy of life, with the release of oxygen |
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Term
| What is the word equation for photosynthesis? |
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Definition
| Carbon dioxide + water --> glucose + oxygen |
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Term
| What is the main source of energy for photoautotrophs and photoheterotrophs |
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Definition
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Term
| what is the source of energy for chemoautotrophs and chemoheterotrophs? |
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Definition
auto = inorganic molecules
chemo = organic molecules (consumers) |
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Term
| What is the site of photosynthesis? |
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Definition
| inside a mesophyll cell, inside the chloroplasts |
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Term
| Where is the chlorophyll pigment found? |
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Definition
| in thykaloid membranes of the chloroplasts |
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Term
| What is the range of visible light? (nm) |
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Definition
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Term
| Energy contained in one quantum of light is called a: |
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Definition
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Term
| what colours does chlorophyll absorb most? |
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Definition
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Term
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Definition
| a technique to split plant pigments |
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Term
| What does the absorption spectrum show? |
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Definition
| light wavelengths being absorbed by pigments |
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Term
| What does the action spectrum show? |
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Definition
| the rate of photosynthesis of a plant at each wavelength |
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Term
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Definition
| the process in which water molecules are splitted producing hydrogen ions, oxygen atoms and 2 electrons. also ATP is produced |
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Term
| Where does the calvin cycle take place |
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Definition
| in the stroma of a chloroplast |
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Term
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Definition
| when ATP and NADPH, from the light dependent reaction producing a triose phosphate, a 3 carbon sugar from the CO2 |
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Term
| What was the great oxidation event |
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Definition
2.4 billion years ago oxygen built up
in the oceans and atmosphere. |
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Term
| name three methods of measuring photosynthesis |
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Definition
| number of oxygen bubbles per minute, uptake of CO2, oxygen concentration, increase in biomass etc, pH of water as CO2 is absorbed etc. |
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Term
| effect of temperature on photosynthesis? at what temperatures does it increase, where is a peak? |
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Definition
| increases until 35*C, peak, and stops at 50*C |
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Term
| effect of light on photosynthesis? |
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Definition
| with low-medium light the rate increases, with high it reaches a plateau |
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Term
| What are the limiting factors of photosynthesis? |
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Definition
| temperature, light, CO2 concentration |
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