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 semiautonomous (self replicating) organelles. Space between outer and inner membrane is called intermembranous space.
Functions of Mitochondria
Energy currency of the cell is:________________. | |||
| Right Option : D | |||
| View Explanation | |||
X is a special organelle, which is spherical or rod shaped with a double membrane. te inner membrane is infolded many times, forming a series of projections called Y. Its energy is used by cell to perform all the basic functions within the body. What is X and Y ? | |||
| Right Option : C | |||
| View Explanation | |||
Organelle other than nucleus, containing DNA is _____________ | |||
| Right Option : C | |||
| View Explanation | |||
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