Plant Structure
Which of the following observations is not used as evidence to support the concept of endosymbiotic origin of chloroplasts and mitochondria?

Both strongly resemble prokaryotes, especially in size
Both have their own DNA
Both can live and function independently of the cell
Both have their own ribosomes

ANSWER DOWNLOAD EXAMIANS APP

Plant Structure
Cellular metabolism is an example of

a series of reactions that defy the second law of thermodynamics
steady-state metabolism
equilibrium metabolism
a series of reactions occurring under standard conditions

ANSWER DOWNLOAD EXAMIANS APP

Plant Structure
Why do some redox reactions in cells result in the transfer of electrons from a reductant with a higher standard redox potential to an oxidant with a lower standard redox potential?

None of these
The rules governing oxidation and reduction apply only in vitro, and not in vivo
Electrons always go from reductants with high redox potentials to oxidants with low redox potentials
Redox potentials are defined under standard conditions, and cellular conditions are typically not standard conditions

ANSWER DOWNLOAD EXAMIANS APP