Mitochondria
Mitochondria
Mitochondria are small, rod-shaped organelles found in large numbers. They were first discovered by Kolliker in 1880. It is a double layered cell organelle. Each mitochondrion is bounded by two membranes: outer and inner. The outer membrane is smooth and porous, while the inner membrane is folded into finger like projections called cristae. The cristae lie in a ground substance called matrix. Mitochondria possess enzymes necessary for the oxidation of carbohydrates. This process releases energy in the form of ATP. This is why mitochondria are known as the powerhouse of the cell. Mitochondria have their own DNA and ribosomes. They can synthesize their own proteins and thus they are semi autonomous (self replicating) organelles. Space between outer and inner membrane is called inter membranous space.
It is scattered in the cytoplasm in the form of particles, threads, roads and spheres.
Mitochondria are not found in ____________________ | |||
| Right Option : A | |||
| View Explanation | |||
What supports the presence of DNA in mitochondria and chloroplasts? | |||
| Right Option : C | |||
| View Explanation |
In which organelles, chemical energy changes into utilisable energy? | |||
| Right Option : D | |||
| View Explanation |
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