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18 Cards in this Set
- Front
- Back
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Electromagnetic energy, or radiation, is measured in units of ____________________ |
particles that travel at different wavelengths |
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________wavelength particles contain more energy than ________ particles |
short long |
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_________________ the visible spectrum and is what is used during photosynthesis. |
PAR |
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___________ absorbs red photons, humic substances |
water |
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__________absorb red and blue photons |
phytoplankton |
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in coastal waters the deepest photons are from the __________ of the spectrum |
middle |
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___________ is the rate of arrival of photons to a horizontal surface |
irradiance |
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what does P/Biomass stand for in the graph |
photosynthetic rate/ unit of algal biomass |
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1st CO2 problem for marine macrophytes is ... |
diffusion rate in H2O is 10000xs slower in water than air |
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2nd CO2 problem for marine macrophytes |
present day pH results in low % of aqueous CO2 |
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what is happening to ocean pH as atmospheric CO2is increasing |
is is dropping |
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third problem for marine macrophytes is ,,, |
RubisC/O doesnt have an evolutionary response to low CO2 or high O2 |
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Fixing O2leads to an energetically expensive mistake called ______________ |
photorespiration |
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__________ may have evolved in response to low CO2, high O2, or both. |
CCM carbon concentrating mechanisms |
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____________ is a simple CCM that first shows up in cyanobacteria. |
carbonic anhydrase |
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Most Land plants have just ___photosynthesis without ____s, but some do have ____s: |
C3 CCM CCM |
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Even with C.A., adding more CO2by making the water more acidic results in |
more photosynthesis |
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C.A. is not getting enough ____ from ______ to saturate the demand of ________. |
CO2 HCO3 RubisC/O |
