The non-living materials found in cytoplasm are known as __________ .

Explanation

**Step-by-Step Solution:**

1. **Understanding Cytoplasm**: Cytoplasm is the gel-like substance found within the cell membrane, which contains various organelles and other components necessary for cell function.

2. **Identifying Components of Cytoplasm**: In cytoplasm, there are two types of materials: living materials (protoplasm) and non-living materials.

3. **Defining Non-Living Materials**: The non-living materials found in the cytoplasm are referred to as "cell inclusions." These are substances that do not have metabolic activity but are important for the cell's structure and function.

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