Light Reactions - Biochemistry
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In photosynthesis, what is the purpose of absorbing light into chloroplasts?
In photosynthesis, what is the purpose of absorbing light into chloroplasts?
In photosynthesis, light is absorbed in order to move electrons from water molecules to NADPH. The reduction of 
to NADPH is accompanied by the movement of protons across a membrane which sets up a gradient similar to that of oxidative phosphorylation. The protons eventually run through ATP synthase and ATP is formed.
In photosynthesis, light is absorbed in order to move electrons from water molecules to NADPH. The reduction of
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Photosynthesis consists of a light phase and a dark phase. The light phase precedes the dark phase and supplies it with __________.
Photosynthesis consists of a light phase and a dark phase. The light phase precedes the dark phase and supplies it with __________.
During photosynthesis, the light phase is responsible for creating 
which the dark phase then consumes as a part of its process. In addition to 
is used in the dark phase as a high energy substrate to work properly.
During photosynthesis, the light phase is responsible for creating
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In photosynthesis, if photosystem II absorbs 12 photons, how many molecules of 
would be produced?
In photosynthesis, if photosystem II absorbs 12 photons, how many molecules of
Absorbing four photons by photosystem II creates one oxygen molecule, so absorbing 12 would produce 3 molecules of 
.
Absorbing four photons by photosystem II creates one oxygen molecule, so absorbing 12 would produce 3 molecules of
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During photosynthesis there is both a light phase and a dark phase. If the light phase were to continue unabated, but the dark phase came to a halt, which of the following is most likely to occur?
During photosynthesis there is both a light phase and a dark phase. If the light phase were to continue unabated, but the dark phase came to a halt, which of the following is most likely to occur?
During photosynthesis, the dark phase follows the light phase. The light phase produces 
which, along with 
, is fed into the dark phase where it is consumed (becomes 
and 
). If the light phase continues working, but the dark phase does not, the 
and 
created during the light phase will not be consumed. Thus, there will be a decrease in the level of 
and 
(the correct answer). The relative proportion of 
will actually increase.
Carbohydrate production is a result of the dark phase working properly, so their levels would decrease in this instance. The sensitivity of the chloroplast to light would not change.
During photosynthesis, the dark phase follows the light phase. The light phase produces
Carbohydrate production is a result of the dark phase working properly, so their levels would decrease in this instance. The sensitivity of the chloroplast to light would not change.
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