The monomer units PHBV is

Options

A. 3Hydroxybutanoic acid and 3-kHydroxypentanoic acid
B. 2-Hydroxybutanoic acid and 2-Hydroxypentanoic and
C. Glycine and amino caproic acid
D. 3-Hydroxybutanoic acid and amino caproic acid

Answer

To determine the monomer units of PHBV (Poly(3-hydroxybutyrate-co-3-hydroxyvalerate)), we can follow these steps:

### Step-by-Step Solution:

1. **Identify the Structure of PHBV**:
- PHBV is a copolymer made from two types of hydroxy acids. The "PH" in PHBV stands for polyhydroxyalkanoates, and "BV" indicates the presence of valerate.

2. **Identify the Monomer Units**:
- The two monomer units that make up PHBV are:
- **3-Hydroxybutanoic acid** (also known as 3-hydroxybutyrate)
- **3-Hydroxypentanoic acid** (also known as 3-hydroxyvalerate)

3. **Understand the Role of Each Monomer**:
- **3-Hydroxybutanoic acid** contributes to the butyrate part of the polymer.
- **3-Hydroxypentanoic acid** contributes to the valerate part of the polymer.

4. **Conclusion**:
- Therefore, the monomer units of PHBV are 3-Hydroxybutanoic acid and 3-Hydroxypentanoic acid.

### Final Answer:
The monomer units of PHBV are 3-Hydroxybutanoic acid and 3-Hydroxypentanoic acid.

---