What is the most useful form of energy for the cell?

• glucose

• heat

• ATP

How many membranes do mitochondria have?

• 1

• 2

• 4

What is the matrix?

• the folds of the inner membrane

• the interior "cytoplasm" of the organelle

What is the cristae?

• the interior "cytoplasm" of the organelle

• 
  

  the folds of the inner membrane

Why are mitochondria considered "semi-autonomous" (semi self-sufficient)?

• they produce energy

• they have their own DNA and ribosomes