Find the correct statement:

Options

A. Biomacromolecules are found in the acid soluble fraction.
B. The compounds found in the acid soluble pool have a common feature, i.e., molecular weight ranging from 18 to 800 daltons.
C. Acid insoluble pool represents cytoplasmic composition only.
D. Acid soluble pool is due to macromolecules from cytoplasm and cell organelles.

Answer

To find the correct statement regarding the acid-soluble and acid-insoluble fractions from a biological sample, we can analyze the information provided in the video transcript step by step.

### Step-by-Step Solution:

1. **Understanding the Process**:
- A biological sample (like a leaf or liver) is mixed with trichloroacetic acid and ground up. This mixture is then filtered to separate the components.

**Hint**: Remember the role of the acid and the grinding process in breaking down the biological sample.

2. **Identifying the Fractions**:
- After filtering, we obtain two fractions: the Acid Soluble Fraction and the Acid Insoluble Fraction. The Acid Soluble Fraction contains smaller molecules that can dissolve in the acid.

**Hint**: Focus on the size of molecules that can pass through the filter.

3. **Characteristics of the Acid Soluble Fraction**:
- The Acid Soluble Fraction does not contain macromolecules (large molecules greater than 1 kDa). Instead, it contains smaller compounds with molecular weights ranging from 18 to 800 daltons.

**Hint**: Recall the definition of macromolecules and their size in daltons.

4. **Evaluating the Statements**:
- **Statement 1**: "In Acid Soluble Fraction, bio-macromolecules are not found." This is true because macromolecules are too large to pass through the filter.
- **Statement 2**: "The compounds found in the acid-soluble pool have a common feature that is molecular weight ranging from 18 to 80 daltons." This is partially true; the range is actually from 18 to 800 daltons.
- **Statement 3**: "Acid insoluble pool represents cytoplasmic composition only." This is incorrect because the acid-insoluble pool can contain various components, not just those from the cytoplasm.
- **Statement 4**: "Acid-soluble pool is due to macromolecules from cytoplasm and cell organelle." This is also incorrect, as the acid-soluble pool does not contain macromolecules.

5. **Conclusion**:
- The correct statement is that the compounds found in the acid-soluble pool have a common feature of molecular weights ranging from 18 to 800 daltons. Therefore, the correct answer is Statement 2.

### Final Answer:
The correct statement is: "The compounds found in the acid-soluble pool have a common feature that is molecular weight ranging from 18 to 800 daltons."