Which of the following cell organelles is considered to be rich in catabolic enzymes ?

Options

A. Lysosomes
B. golgi bodies
C. mitochondria
D. endoplasmic reticulum

Answer

To determine which cell organelle is considered to be rich in catabolic enzymes, we can analyze the options provided:

1. **Lysosomes**:
- Lysosomes are membrane-bound organelles that contain hydrolytic enzymes, which are also known as digestive enzymes. These enzymes are involved in the breakdown of various biomolecules, including proteins, lipids, and carbohydrates. Thus, lysosomes play a crucial role in catabolism, which is the process of breaking down complex molecules into simpler ones.

2. **Quality Bodies** (likely referring to "Golgi bodies" or "Golgi apparatus"):
- The Golgi apparatus is primarily involved in the sorting, modifying, and packaging of proteins and lipids for secretion or delivery to other organelles. It does not contain catabolic enzymes and is not primarily involved in catabolic processes.

3. **Mitochondria**:
- Mitochondria are known as the powerhouses of the cell because they are involved in cellular respiration, a process that generates ATP (adenosine triphosphate) by breaking down glucose and other substrates. They contain enzymes that facilitate catabolic reactions, particularly those involved in the Krebs cycle and oxidative phosphorylation.

4. **Endoplasmic Reticulum (ER)**:
- The endoplasmic reticulum is involved in the synthesis of proteins and lipids. It does not contain catabolic enzymes and is not directly involved in catabolic processes.

Based on this analysis, the organelle that is rich in catabolic enzymes is:

**Answer: Mitochondria**

### Step-by-Step Solution:
1. Identify the organelles listed in the options.
2. Analyze the function of each organelle:
- Lysosomes: Contain hydrolytic/digestive enzymes for breakdown (catabolic).
- Golgi apparatus: Involved in sorting and packaging proteins (not catabolic).
- Mitochondria: Involved in cellular respiration and contain catabolic enzymes.
- Endoplasmic reticulum: Involved in lipid and protein synthesis (not catabolic).
3. Conclude which organelle is primarily involved in catabolic processes.