15%

30-35%

20%

15-20%

Cristae and electron

outer membrane and inner membrane

outer mitochondrial and inner mitochondrial membrane

2

1

4

3

Cristae

matrix

inner boundary membrane

outer membrane

proteins responsible for the import of mitochondrial matrix proteins

energy transducers

many deep folds that are characteristics of the inner mitochondrial membrane

Don't pick this one

or this one

Inner boundary membrane and internal cristal membranes that are joined to one another by a narrow tubular connection (pick this one)

water

dry

gel

air

20

15

40

50

proteins

ATP

integral proteins that have relatively large internal channel surrounded by a barrel of β strands

the what?

the outer membrane is freely permeable to molecules such as ATD, NAD, and coenzyme A

the membrane is impermeable

requires all molecules and ions to have special membrane transporters to gain access to the matrix

all the above

freely permeable to molecules like ATP, NAD, and coenzyme A

have large channels

impermeable; all molecules and ions require special membrane transporters to gain entrance to the matrix.

Bigger

Smaller