Unit 2 metabolism and C N fixation

chemoorganoheterotroph respiring glucose and NO3-. electron donor is __

NADH

chemoorganoheterotroph respiring glucose and NO3-, electron acceptor is ___

NO3-

chemoorganoheterotroph respiring glucose and NO3-, NADH source is

TCA cycle

Chemoorganoheterotroph fermenting lactose, electron donor is __

Glucose

Chemoorganoheterotroph fermenting lactose, Carbon source is __

pyruvate

chemolithoautotroph that is using iron (Fe2+) and oxygen. What is the electron donor

Fe2+

hemoorganoheterotroph fermenting glucose. What is the electron donor for the system?

Glucose and NADH

chemoorganoheterotroph fermenting glucose. How does this organism make a proton motive force

Reverse F1Fo ATPase

chemolithoautotroph that is using iron (Fe2+) and oxygen. How does this organism make a proton motive force

Electron transport chain (ETC)

chemolithoautotroph that is using iron (Fe2+) and oxygen. How does this organism make NADH

Reverse electron transport chain (ETC)

chemolithoautotroph aerobically respiring H_2. How does this organism make NADH?

Direct reduction of NAD

Cyclic photorophy

the e- donor is the terminal acceptor

Acyclic phototrophy

e- are pulled out of circulation to regenerate NADH

cyclic e- donor

BacteriochlorophyllC

Cyclic PMF

ETC

Cyclic NADH

acyclic

acyclic e-

H20

acyclic e- acceptor

NAD+

Rubisco

attaches to CO2 and converts to RuBP

To protect rubisco from oxygen and prevent glycolic acid

Carboxysomes

Nitrogenase

2 Iron proteins, 2 iron-molybdenum proteins

How do cells prevent Nitrogenase from rusting

anaerobic, rapid respiration, heterocysts

Sinorhizobium meliloti

legume symbiont cells get plant carbon, plant gets N, cell-cell communication. Symbiont cells release rhizopine to S. cells outside of plant.