Energy hops from chlorophyll to chlorophyll before reaching the reaction centre, taking about:
AA millionth of a second
BA tenth of one second
CA full second or more
DAbout one whole minute
Answer & Solution
Correct answer: A. A millionth of a second
1. An antenna of pigment molecules funnels absorbed energy inward.
2. The energy is transferred from chlorophyll to chlorophyll until it is delivered to the reaction center.
3. That relay takes about a millionth of a second.
4. At the reaction centre the light energy is converted into an excited electron.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 8 'Photosynthesis', sections 8.1-8.3_
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