Which of the following is least likely to be the component of the cell wall in higher plants ?

Options

A. Polymer of glucose
B. Polymer of lipid
C. Hemicellulose
D. Polymer of amino acids

Answer

To solve the question "Which of the following is least likely to be a component of the cell wall in higher plants?", we will analyze each option provided in the context of plant cell wall composition.

### Step-by-Step Solution:

1. **Understanding Plant Cell Wall Composition**:
- The primary components of the cell wall in higher plants include cellulose, hemicellulose, and pectin.
- Cellulose is a polymer made up of glucose units.
- Hemicellulose is also a polymer, but it consists of various sugars, including glucose and others.
- Pectin is primarily composed of polysaccharides, including galacturonic acid, which is derived from sugars.

2. **Analyzing the Options**:
- **Option 1: Polymer of Glucose**: This refers to cellulose. Since cellulose is a major component of the plant cell wall, this option is likely to be present.
- **Option 2: Polymer of Lipid**: Lipids are not components of the plant cell wall. This option is least likely to be present in the cell wall.
- **Option 3: Hemicellulose**: This is indeed a component of the cell wall, as it is a polymer of various sugars, including glucose.
- **Option 4: Polymer of Amino Acid**: While pectin can be derived from amino acids, it is not primarily a polymer of amino acids. However, this option is still more relevant than lipids.

3. **Conclusion**:
- Among the options provided, the one that is least likely to be a component of the cell wall in higher plants is **Option 2: Polymer of Lipid**.

### Final Answer:
**The least likely component of the cell wall in higher plants is: Polymer of Lipid.**