Chloroplast Structure and Evolutionary Origin
The internal structures of chloroplasts differ between C4 plants and red algae. Which statement best explains these differences while also accounting for their shared evolutionary origin?
A
C4 plant chloroplasts evolved from red algal chloroplasts
B
Red algal chloroplasts have a single membrane unlike plant chloroplasts
C
Both contain double outer membranes but evolved different thylakoid arrangements
D
Only plant chloroplasts contain chlorophyll for photosynthesis
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