Term
| Electron transfer in aerobic photoautotrophy? |
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Definition
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Term
| Electron transfer in anaerobic photoautotrophy? |
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Definition
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Term
| Electron transfer in H2 oxidation? |
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Definition
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Term
| Electron transfer in nitrification? |
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Definition
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Term
| Electron transfer in sulfur oxidation? |
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Definition
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Term
| Electron transfer in iron oxidation? |
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Definition
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Term
| Electron transfer in manganese oxidation? |
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Definition
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Term
| Lipid pigments like chlorophylls are only soluble in... |
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Definition
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Term
| Basic structure of chlorophylls? |
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Definition
Central porphyrin ring
Phytol tail (hydrocarbon) – inserted into membrane
Cyclopentanone ring |
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Term
| Absorption spectrum for chlorophyll? |
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Definition
| blue (430 nm) and red (680 nm) regions |
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Term
| Absorption spectrum for bacteriochlorophyll? |
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Definition
| blue (360 nm) and near infrared region (700-900 nm) |
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Term
| ___ in porphyrin ring facilitates the absorption of light |
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Definition
| Alternating pattern of double bonds |
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Term
| Name the 8 carotenoid pigments |
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Definition
Diaponeurosporene
Neurosporene
Lycopene
B-carotene
Y-carotene
Chlorobactene
B-isorenieratene
Isorenieratene |
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Term
| Which pigments are the major light harvesters in cyanobacteria and red algae? |
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Definition
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Term
| What are the types of phycobilin pigments? |
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Definition
Phycocyanins (620 nm) -- cyanobacteria
Phycoerythrins (550 nm) -- red algae |
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Term
| Basic structure of phycobilin pigments? |
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Definition
Linear porphyrin molecules
No Mg2+ present |
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Term
| Phycobilins form into aggregates called ____ that often occur between thylakoid membranes |
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Definition
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Term
| Purple phototrophs use which photosystem? |
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Definition
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Term
| In purple phototrophs, NADP is reduced to NADPH by... |
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Definition
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Term
| In anoxygenic phototrophs, ___ is the reducing power for CO2 fixation |
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Definition
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Term
| Oxygenic phototrophs use which photosystem? |
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Definition
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Term
| Calvin cycle is used by... |
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Definition
Algae
Cyanobacteria
Purple sulfur phototrophs
Heliobacteria
Many chemoautotrophs |
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Term
| The Calvin cycle uses __ and __ produced by light reactions to... |
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Definition
NADPH, ATP
fix CO2 and form hexose |
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Term
| Which two enzymes in the Calvin cycle are critical and unique to autotrophs? |
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Definition
Phosphoribulokinase
Ribulose bisphosphate carboxylase (RuBisCo) |
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Term
| How do green sulfur bacteria fix carbon and form hexoses? |
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Definition
| reverse of the citric acid cycle |
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Term
| How do green nonsulfur bacteria form glyoxylate? |
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Definition
| hydroxypropionate pathway |
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