Oxidative enzymes occur mostly in

Circular and double-stranded $DNA$ is found in:

Cellular respiration is carried out by

Mitochondria in the living cell can readily be identified from other organelles of the cell through a light microscope by using:

Identify the location and function of the following structures:
$(1)$ Cristae
$(2)$ ATPase

Which organelle is responsible for aerobic respiration?