Differences between Mitochondria and Chloroplasts

S.N. Mitochondria Chloroplasts
1. They are smaller in size (1-4 µm). They are bigger in size (4-10 µm).
2. They occur in practically all eukaryotic cells. They occur in green eukaryotic cells which are exposed to sunlight.
3. They are bin-like in shape. They are disc-like in shape.
4. Cristae remain attached to the inner membrane. Thylakoids remain separated from the inner membrane.
5. Cristae are formed by the folding of the inner membrane. Foldings in the inner membrane form stromules.
6. Cristae produce ATP by breakdown of glucose. Thylakoids produce ATP by action of light.
7. They lack pigments. They have pigments.
8. They consume organic compounds for their activity leading to decrease in weight. They produce organic compounds, leading to increase in weight.
9. They produce CO2 and H2O by breakdown of organic compounds. They utilize CO2 and H2O as raw materials to synthesize organic compounds.
10. They use oxygen to break down glucose. by cellular respiration. They produce oxygen and glucose by photosynthesis.
11. They are functional all the time. They are functional only in the presence of sunlight.
12. They don’t trap light energy. They trap light energy and convert that into chemical energy in organic compounds.

Differences between Mitochondria and Chloroplasts