Which of the following option is incorrect?

Options

A. Lipoproteins = Proteins + Lipids
B. Chromoproteins = Proteins + Lipids
C. Nucleoproteins = Proteins + Nucleic acids
D. Glycoproteins = Proteins + Carbohydrates

Answer

To solve the question regarding which option is incorrect among the given choices related to proteins, we can follow these steps:

### Step-by-Step Solution:

1. **Understand the Definition of Proteins**:
- Proteins are polymers made up of amino acids. They are classified as heteropolymers because they consist of different types of amino acids.

2. **Analyze Each Option**:
- **Option 1**: Lipoproteins = Proteins + Lipids
- This statement is correct. Lipoproteins are indeed formed when lipids combine with proteins.

- **Option 2**: Chromoproteins = Proteins + Lipids
- This statement is incorrect. Chromoproteins are actually conjugated proteins that contain a prosthetic group (which can be a pigment) attached to the protein, not lipids.

- **Option 3**: Nucleoproteins = Proteins + Nucleic Acids
- This statement is correct. Nucleoproteins are formed when proteins bind with nucleic acids.

- **Option 4**: Glycoproteins = Proteins + Carbohydrates
- This statement is correct. Glycoproteins consist of proteins that are attached to carbohydrates.

3. **Identify the Incorrect Option**:
- Based on the analysis, the incorrect option is **Option 2**: Chromoproteins = Proteins + Lipids. Chromoproteins are not formed from lipids but rather from proteins combined with a prosthetic group.

### Conclusion:
The incorrect option is **Chromoproteins = Proteins + Lipids**.

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