Cell Division
Nitrogen
Carbon
Resp/Ferm
Photosynthesis
100
What does the divisome do?
recruits Fts protein complex to initiate FtsZ ring formation
100
What enzyme catalyzes N2 fixation?
nitrogenase
100
What is the carbon source for autotrophs?
C02
100
When does substrate level phosphorylation occur?
glycolysis
100
What shape photosystem does cyanobacteria have?
Z
200
What is the relationship of k to g?
k = 1/g
200
How many ammonia are produced per nitrogen (gas) molecule in nitrogen fixation?
2
200
What is cellulase and what does it do?
exoenzyme that breaks down cellulose
200
How many ATP are generated during glycolysis
2
200
How many photosystems are in anoxygenic photosynthesis?
1
300
Name two processes that mediate the formation of the divisome
NO and the Min system
300
How many ATP are needed to catalyze the ammonification reaction?
0
300
How does a cell take up the nutrients that result from the cellulase reaction?
Cellulase breaks down cellulose into glucose. Cell takes up glucose via PTS
300
What are the oxidative phosphorylation pathways?
CAC, ETC
300
Which cytochrome is used in oxygenic photosynthesis?
cytbf
400
Name the function of all the min proteins
Min C - inhibits FtsZ ring formation Min D - recruits C and associates with it Min E - oscillates CD complex from pole to pole
400
which 3 molecules make up the primary cofactor of nitrogenase?
FeSMo - Iron, Sulfer, Molybdenum
400
What affect does burning fossil fuels have on the carbon cycle?
Increase in atmospheric carbon via C02 = greenhouse effect
400
What is the final e acceptor in fermentation?
There is none, recycles NADH to NAD
400
What is the final electron donor for a photosynthesizing plant?
water
500
You determine that a pizza has 3 million S. aureus cells in it. You estimate that the food preparer did not wash his hands and probably inoculated the pizza with 500 S. aureus. He also forgot to refrigerate it. If the pie was made 6 hours ago, how many generations have occurred? How long is each generation in minutes? (Use 0.301 for log2)
n= 12.5 t= 28.8 min/generation Nt = N02n and g = t/n.
500
How would an ABC transporter work to bring in Nitrate/Nitrite? (NO3/NO2)
outward facing ->Binding protein -> ATP hydrolyses -> TMD -> inward facing
500
Name 3 other carbohydrate exoenzymes aside from cellulase
cellulose cellulases, glucanases xylan xylanases starch amylases, phosphorylases glycogen amylases, phosphorylases pectin pectinolytic enzymes chitin chitinases
500
What is the delta G equation? Name what each letter stands for.
ΔG° = -nFΔE’0 Where n is the number of moles of electrons transferred across a redox potential change of ΔE’0 volts (V) and F is the Faraday Constant (96,500 J/V/mol)
500
Name the cytochrome used in purple sulfer bacterial photosynthesis
cytbc1 or cyt c2
M
e
n
u