Why is there a double membrane around both a chloroplast and mitochondria?

Answer 1

To have somewhere to make the proton gradient in. The H+ have stored electric potential energy inside the proton gradient, and that energy is used to synthesize ATP from ADP and Pi when they pass through ATPase to the other side of the proton gradient where they acquire a low energy state.

Answer 2

Recalling endosymbiont-theory, many millions of years ago a cell was hungry and incorporated a bacterium. So the cell wrapped a lysosome around the bacterium and tried to digest it. But somehow the bacterium resisted and both found that it's an advantage for them to live in symbiosis. The cell fed the bacterium with nutrients and it reciprocated by donating his host energy (ATP).

The proof lies within the form of the double membrane: the inner membrane has many wrinkles and resembles a bacterium while the outer membrane is smooth, like the mantle of a lysosome.

Answer 3

because the membrane of the mitochondria is slow sometimes and fast some it depends on how u work out but not fat a dah

Answer 4

because the when nucleus connects with the DNA, it creates membranes.

Answer 5

Surface area is increased by folds.Their purposes are done efficiently as a result.