Indicate true (T) and false (F) statements below regarding the evolution of photosynthesis and oxidative phosphorylation. Your answer would be a five-letter string composed of letters T and F only, e.g. TTFTF.
( ) Chloroplasts are thought to descend from ancient purple sulfur bacteria.
( ) Mitochondria are thought to descend from ancient ?-proteobacteria.
( ) The first photosynthetic cyanobacteria evolved before the first aerobic proteobacteria.
( ) All photosynthetic and aerobic bacteria are thought to have evolved from a common ancestor capable of fermentation and membrane electron transport.

Question

Indicate true (T) and false (F) statements below regarding the evolution of photosynthesis and oxidative phosphorylation. Your answer would be a five-letter string composed of letters T and F only, e.g. TTFTF.
( )	Chloroplasts are thought to descend from ancient purple sulfur bacteria.
( )	Mitochondria are thought to descend from ancient ?-proteobacteria.
( )	The first photosynthetic cyanobacteria evolved before the first aerobic proteobacteria.
( )	All photosynthetic and aerobic bacteria are thought to have evolved from a common ancestor capable of fermentation and membrane electron transport.

Quizplus · Accepted Answer

Aerobic proteobacteria evolved from ancestral purple nonsulfur bacteria only after the atmosphere of the Earth became oxidizing. Chloroplasts are thought to have arisen from cyanobacteria.

Indicate True (T) and False (F) Statements Below Regarding the Evolution