1mass nounThe reaction of something, especially the iris of the eye, to different intensities of light.
光反应（尤指虹膜对不同光强度的反应）
Example sentencesExamples
The investigator simply has to set the parameter representing the light reaction activity to zero, and recalculate the steady-state.
2the light reactionBiochemistry The reaction which occurs as the first phase of photosynthesis, in which energy in the form of light is absorbed and converted to chemical energy in the form of ATP.
ATP〔生化〕光反应（光合作用第一阶段的反应，此时光能转化成三磷酸腺苷形式的化学能）
Example sentencesExamples
Two proteins may participate in the light reaction.
During this second stage of photosynthesis, NADPH 2 and ATP produced in the light reaction are used to reduce CO 2 to organic carbon.
Chlorophyll and several other pigments such as beta-carotene are organized in clusters in the thylakoid membrane and are involved in the light reaction.
This allows oxygen to diffuse past the ‘gatekeeping’ mitochondria and into the peroxisomes, initiating the light reaction.
The light reaction relies upon two clusters of pigments, known as photosystems I and II, which each possess a different type of chlorophyll and several accessory pigments.
Definition of light reaction in US English:
light reaction
noun
1The reaction of something, especially the iris of the eye, to different intensities of light.
光反应（尤指虹膜对不同光强度的反应）
Example sentencesExamples
The investigator simply has to set the parameter representing the light reaction activity to zero, and recalculate the steady-state.
2the light reactionBiochemistry The reaction which occurs as the first phase of photosynthesis, in which energy in the form of light is absorbed and converted to chemical energy in the form of ATP.
ATP〔生化〕光反应（光合作用第一阶段的反应，此时光能转化成三磷酸腺苷形式的化学能）
Example sentencesExamples
Two proteins may participate in the light reaction.
During this second stage of photosynthesis, NADPH 2 and ATP produced in the light reaction are used to reduce CO 2 to organic carbon.
This allows oxygen to diffuse past the ‘gatekeeping’ mitochondria and into the peroxisomes, initiating the light reaction.
The light reaction relies upon two clusters of pigments, known as photosystems I and II, which each possess a different type of chlorophyll and several accessory pigments.
Chlorophyll and several other pigments such as beta-carotene are organized in clusters in the thylakoid membrane and are involved in the light reaction.