The water necessary for photosynthesis
is split into H2 and O2
is directly involved in the synthesis of carbohydrates
provides the electrons to replace the lost electrons in photosystem II
Provides the H+ needed to synthesize G3P
does none of the above
In PSII, p680 differs from the other pigment molecules in the light-harvesting complex in that it
is a carotenoid
absorbs light energy and transfers that energy to other molecules with out the transfer of electrons
transfers an excited electron to the primary electron acceptor
does not transfer an excited electron to the primary electron acceptor
acts as an ATP synthase to produce ATP
The cyclic electron flow that occurs via photosystem I produces
NADPH
oxygen
ATP
all of the above
a and c only
During linear electron flow, the high-energy electron from p680
eventually moves to NADP+
becomes incorporated in water molecules
is pumped into the thylakoid space to drive ATP production
provides the energy necessary to split water molecules
falls back to the low-energy state in photosystem II
During the first phase of the Calvin Cycle, carbon dioxide is incorporated into ribulose biphosphate (RuBP) by
oxaloacetate
rubisco
RuBP
quinone
G3P
The NADPH produced during the light reactions is necessary for
the carbon fixation phase, which incorporates carbon dioxide into an organic molecule of the Calvin Cycle
the reduction phase, which produces carbohydrates in the calvin cycle
the regeneration of RuBP of the Calvin Cycle
a and b only
The majority of the G3P produced during the reduction and carbohydrate production phase is used to produce
glucose
RuBP to continue the cycle
Rubisco
Photorespiration
is the process where plant use sunlight to make ATP
is an inefficient way plants can produce organic molecules and in the process use O2 and release CO2
is a process that plants use to convert light energy to NADPH
occurs in the thylakoid lumen
is the normal process of carbohydrate production in cool, moist environments.
Photorespiration is avoided in C4 plants because
these plants separate the formation of a four-carbon molecule from the rest of the Calvin cycle in different cells.
these plants carry out only anaerobic respiration.
the enzyme PEP caroboxylase functions to maintain high CO2 concentrations in the bundle-sheath cells
Plants commonly found in hot and dry environments that carry out carbon fixation at night are
oak trees
C3 plants
CAM plants
