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Example Questions
Example Question #1 : Carbohydrate Metabolism
In photosynthesis, what is the purpose of absorbing light into chloroplasts?
The energy from the absorbed light causes all of the electrons in the chloroplast to jump to higher energy levels
The energy from the absorbed light generates NADPH from the electrons of water molecules, ultimately setting up a proton gradient
The energy from the absorbed light moves the electrons from NADPH to water molecules, ultimately setting up a proton gradient
The energy from the absorbed light causes the generation of NADH from the electron of water molecules, ultimately setting up a proton gradient
The energy from the absorbed light generates NADPH from the electrons of water molecules, ultimately leading to the creation of carbon dioxide
The energy from the absorbed light generates NADPH from the electrons of water molecules, ultimately setting up a proton gradient
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.
Example Question #1 : Light Reactions
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.