Like this study set? Create a free account to save it.

Sign up for an account

Already have a Quizlet account? .

Create an account

stage three of glycolysis

fermentation reaction

point of fermentation reaction

regenerate NAD+

fermentation is internally balanced?

the use of NADH requires the regeneration of NAD+

in the absence of gloucose compounds can make ATP via

substrate level phosphorylation

"energy-rich compounds involved"

high energy intermediates

most phototrophs are


using CO2 as sole carbon source requires

reducing power (high energy electrons have to be available to donate) and energy

"light reactions" require

reducing power and energy

dark reactions

CO2 fixing, regenerate supply

anoxygenic photosynthesis involves


anoxygenic photosynthesis requires

reducing power and energy

what are the donors that provide reducing power?

the photosystems; p680 is a good donor by splitting water (water supplies the reducing power)

p680 donating:

electrons donated, drops down to ground state. water is split to replenish electrons (water is the reducing power)

The Z scheme involves

green plants, algae, and cyanobacteria
** oxygenic

The Z scheme:

electrons can be passed down to p700,
becomes a better donor

p700 being a better donor makes ____ reducing power


the different chloroplasts have

different R groups, absorb at different maximum wavelengths

where does ATP synthesis occur ?


ATPs chills where??


oxygenic photosynthesis

oxygen is the end product, generates reducing power

anoxic photosynthesis reducing power generate by

inorganic compounds

anoxygenic photosynthesis occurs in

purple bacteria, green sulfur/nonsulfur bacteria, gram positive, and acidobacteria

oxygenic electron flow

the Z scheme

1st step in Z scheme

splitting of water into oxygen and electrons

2nd step in Z scheme

p680 acts as a reducer and is then returned to its ground state potential (after it is reduced by an electron from water)


donates electron to photosystem I

PS1 role

p700 accepts electron, eventually leads to the reduction of NAD+

ulitmately NAD+ IS

reduced to NADH

Z schemel

green plants, algae, cyanobacteria

anoxygenic photosynthesis

carries out cyclic photophosphorylation using only photosystem 1

Reducing power for Co2 anoxygenic

sources other than water

reducing power for CO2 oxygenic


anoxic bacteria

purple bacteria, green sulfur bacteria, heliobacteria

purple and green bacteria

preceded cyanobacteria (oxygenic; anoxygenic photosynthesis first form of photosynthesis on earth

purple bacteria


cyclic photophosphorylation:

rhotobacter membranes


can be used for reducing potential; better than NADH

ferredoxin can be used by

green sulfur bacteria and heliobacteria

Please allow access to your computer’s microphone to use Voice Recording.

Having trouble? Click here for help.

We can’t access your microphone!

Click the icon above to update your browser permissions and try again


Reload the page to try again!


Press Cmd-0 to reset your zoom

Press Ctrl-0 to reset your zoom

It looks like your browser might be zoomed in or out. Your browser needs to be zoomed to a normal size to record audio.

Please upgrade Flash or install Chrome
to use Voice Recording.

For more help, see our troubleshooting page.

Your microphone is muted

For help fixing this issue, see this FAQ.

Star this term

You can study starred terms together

Voice Recording