Ground substance present inside the mitochondria is called :-

Options

A. Stroma
B. Matrix
C. Cell sap
D. Cytoplasm

Answer

To determine the ground substance present inside the mitochondria, we need to analyze the options provided:

1. **Understanding Mitochondria**: Mitochondria are double-membraned organelles found in eukaryotic cells. They are often referred to as the "powerhouses" of the cell because they are the sites of cellular respiration, where energy (ATP) is produced.

2. **Identifying the Ground Substance**: The ground substance inside the mitochondria is crucial for its function. This substance is where various biochemical processes occur, including the Krebs cycle and oxidative phosphorylation.

3. **Evaluating the Options**:
- **Stroma**: This term refers to the fluid-filled space in chloroplasts, not mitochondria.
- **Matrix**: This is the correct term for the ground substance inside mitochondria. It contains enzymes, mitochondrial DNA, ribosomes, and tRNA, all essential for mitochondrial function.
- **Cell Sap**: This refers to the fluid found in vacuoles of plant cells, not in mitochondria.
- **Cytoplasm**: This is the gel-like substance within a cell, but outside the organelles, not specifically related to mitochondria.

4. **Conclusion**: Based on the analysis, the ground substance present inside the mitochondria is called the **matrix**.

**Final Answer**: The ground substance present inside the mitochondria is called **matrix**.

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