The multiprotein complexes embedded in the thylakoid membrane are named:
AComplex I and II
BPhotosystem II and I
CGranum A and B
DStroma one and two
Answer & Solution
Correct answer: B. Photosystem II and I
1. The step that converts light energy into chemical energy happens inside a named complex.
2. There are two of them, numbered in the order they were discovered rather than used.
3. The actual step that converts light energy into chemical energy takes place in a multiprotein complex called a photosystem, two types of which are found embedded in the thylakoid membrane, photosystem II and photosystem I.
4. Complexes I to IV belong to mitochondrial electron transport, not to the chloroplast.
_Source: OpenStax Biology for AP(R) Courses (CC BY 4.0), Ch 8 'Photosynthesis', sections 8.1-8.3_
Related questions
The light-independent reactions still depend on the light reactions because they need:Roughly what share of the oxygen produced in a leaf is used by the leaf's own mitochondriaLight of energy higher than blue damages pigment molecules in a process called:Bacteria that build sugars using energy from inorganic chemicals rather than light are:The coal and petroleum burned today store sunlight captured by photosynthesis roughly:How many turns of the Calvin cycle are needed before one G3P leaves it?The three-carbon carbohydrate that carbon dioxide is first fixed into is:The flow of hydrogen ions through ATP synthase is called: