explain the role of light envergy in the light-dependent reactions.?

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explain the role of light envergy in the light-dependent reactions.?

2007-02-09 11:58:05 · 3 answers · asked by jay 1 in Science & Mathematics ➔ Biology

3 answers

Light energy (a photon) excites an electron in the the pigment molecule (chlorophyll) causing it to jump to the primary electron receptor. From there, the electron passes throught the electron transfer chain eventually reducing NADP into NADPH.

2007-02-09 12:10:51 · answer #1 · answered by dtbrantner 4 · 1⤊ 0⤋

In light-dependent reactions, the light energy is converted into chemical energy. Light-dependent reactions are also a part of photosynthesis.

2007-02-09 20:08:35 · answer #2 · answered by luv_2eat_chocolate 3 · 0⤊ 1⤋

Light energizes electrons in the chlorophyll. This energy is used to split water molecules, to manufacture ATP, and to build glucose in the Calvin cycle.

2007-02-09 20:09:06 · answer #3 · answered by ecolink 7 · 0⤊ 1⤋