alleryStart learning →Where are the two types of photosystem found?
AEmbedded in the thylakoid membrane
BDissolved freely within the stroma
CAttached to the outer chloroplast membrane
DFloating in the thylakoid lumen fluid
Answer & Solution
Correct answer: A. Embedded in the thylakoid membrane
1. The step that converts light energy into chemical energy takes place in a multiprotein complex called a photosystem.
2. Two types of photosystem are found embedded in the thylakoid membrane.
3. They are photosystem II and photosystem I.
4. A complex that must pump protons across a membrane has to sit within it, not float beside it.
_Source: OpenStax Biology (1st ed., CC BY 4.0), Ch 8 "Photosynthesis", section 8.2 The Light-Dependent Reactions of Photosynthesis_
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