14D Assignment Flashcards
The stroma of the chloroplast is analogous to the _______ of the mitochondria.
intermembrane space
outer membrane
inner membrane
matrix
matrix
As shown here, the proton pumps of chloroplasts concentrate protons into:
the thylakoid space
the stroma
the intermembrane space
the thylakoid space
As shown here, ATP produced by phosphorylation of ADP to ATP takes place in
the thylakoid space
the stroma
the intermembrane space
the stroma
As shown here, “fixation” of CO2
to the five-carbon ribulose 1,5-bisphosphate results in the formation of a transient _____ carbon intermediate.
5
1
6
3
6
The “intermediate” formed by fixation of CO2 to ribulose 1,5-bisphosphate is converted into ___; ____ molecule(s) by the end of the carboxylation stage of the Calvin-Benson-Basham Cycle.
one; three-carbon
two; three-carbon
six; one-carbon
three; two-carbon
two; three-carbon
If 3 one carbon molecules merge into (“in”) the carboxylation stage of the cycle to join ribulose 1,5-bisphosphate, then we can expect to harvest (“out”) ______ three carbon molecule(s) at the end of the reduction phase of the cycle. All this assumes plentiful energy-carrying ATP and NADPH, provided by the _____ reactions.
1, dark
3, dark
1, light
3, light
5, dark
1, light
Which substrate for the carbon fixation cycle is NOT provided by the light reactions of photosynthesis and associated processes?
CO2
ATP
NADPH
CO2
As shown here, in eukaryotic cells with both chloroplasts and mitochondria,
chloroplasts provide NADPH to mitochondria
chloroplasts provide ATP to mitochondria
chloroplasts supply respiratory substrates to mitochondria
chloroplasts supply respiratory substrates to mitochondria
The porphyrin ring of chlorophyll binds:
magnesium
iron
sulfur
magnesium
In oxygenic (O2-producing) photosynthesis, the electron donated by the special pair is replaced (indirectly) by an electron from:
an electron transport chain
NADPH
water
CO2
O2
water
The special pair must efficiently and irreversibly boost electrons to electron carriers to achieve the _____ which provides the driving force for _____ splitting.
ATP synthesis, hair
ADP import, water
proton gradient, water
charge-seperation, water
charge-seperation, water
Resonance energy transfer is the means by which light energy functions to:
increase the rate of electron excitation by the special pair.
cause electron donation by the light-harvesting antenna complex
cause O2 production by the light-harvesting antenna complex
directly produce ATP
increase the rate of electron excitation by the special pair.
In this “Z-scheme” model of photosynthesis, O2 is produced by:
photosystem II
photosystem I
both
photosystem II
The complex that removes electrons from water contains:
iron
magnesium
manganese
manganese
As shown here, the protons stripped from water end up in:
the stroma
the intermembrane space
the thylakoid space
the thylakoid space
