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20 Cards in this Set
- Front
- Back
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photosynthesis
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energy from the sun, rxns fixation of CO2 into carbohydrates and O2
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rubisco
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enzyme, catalyzes carboxylation
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C3 plants
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normal photosynthesis in the mesophyll
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net photosynthesis
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net gain of carbon from photosynthesis and respiration
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light compensation point
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rate of carbon uptake from photosynthesis equals rate of carbon lost from photosynthesis
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light saturation point
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photosynthesis becomes light saturated. dark cycle is limiting factor. No further increase in photosynthesis
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photoinhibition
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overloading of processes involved in light reactions
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mesophyll
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where C3 photosynthesis happens
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stomata
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CO2 enters, O2 leaves
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transpiration
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water loss through stomata
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turgor pressure
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force exerted on a cell wall by the water concentration in the cell
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osmotic pressure
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concentration of solutes in cells are associated with water loss and will lower the water potential
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water-use efficiency
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ration of carbon fixation per unit of water lost
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boundary layer
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layer of still air adjacent to surface of leaf. influences transfer of heat from plant to surrounding
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carbon balance
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balance between uptake of CO2 in photosynthesis and the loss through respiration
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relative growth rate
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growth observed during an observed period
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net assimilation rate
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assimilation of new tissue per unit leaf area
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leaf area ratio
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leaf area per unit of plant weight
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C4 photosynthesis
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stomata open during day. photosynthesis occurs in bundle sheath
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CAM
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Stomata open during night, photosynthesis during day
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