Name two fractions obtained during chemical analysis of living tissue.

Explanation

**Step-by-Step Solution:**

1. **Understanding the Process**: When analyzing living tissue chemically, the tissue is first ground with a specific acid, in this case, trichloroacetic acid. This grinding creates a slurry or paste.

2. **Separation of Components**: The next step involves separating this slurry into two distinct fractions. This is achieved by filtering the slurry through cheesecloth.

3. **Identifying the Fractions**:
- **Acid Insoluble Fraction (Retentate)**: The portion that does not pass through the cheesecloth due to its larger size is known as the acid insoluble fraction. This fraction contains larger biomolecules such as proteins, carbohydrates, lipids, and fats.
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