Chapter 23, Problem 15P

Interpretation Introduction

Interpretation:

The main features of mitochondrion and place where production of energy takes place in the mitochondrion are to be determined.

Concept introduction:

The term cytoplasm refers to the thick solution which fills each cell present in living organisms and is enclosed by a cell membrane. Its composition mainly consists of water, salts and proteins. Its function is to hold the internal components present in a cell in their respective places and to save them from any kind of damage.

Answer to Problem 15P

Mitochondrion refers to a small organelle which is placed in the cytoplasm of the cell. It consists of an outer membrane and inner membranes with a number of folds. The production of the energy occurs in the matrix present in the mitochondrion.

Explanation of Solution

Mitochondrion refers to a small organelle which is placed in the cytoplasm of the cell. It consists of an outer membrane and inner membranes with a number of folds. Area between these two membranes is called as the intermembrane space and this area is further surrounded by an inner membrane of the mitochondrion called as the matrix.

The production of the energy occurs in the matrix present in the mitochondrion. It is also to be noted that the number of mitochondria in a given cell differs from cell to cell as this number depends upon the energy needs of the cell. The skeleton diagram of mitochondrion is as shown below:

Conclusion

Mitochondrion is present in the cytoplasm of the cell. The production of the energy occurs in the matrix present in the mitochondrion.