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. |