What are glycoproteins primarily composed of?

• A. Proteins and carbohydrates
• B. Nucleic acids and carbohydrates
• C. Proteins and lipids
• D. Lipids and nucleic acids

Answer: (A)

Verified step by step guidance

1. Understand the definition of glycoproteins: Glycoproteins are molecules that consist of a protein and a carbohydrate (sugar) component.
2. Identify the components of glycoproteins: Glycoproteins are primarily composed of proteins and carbohydrates.
3. Eliminate incorrect options: Review the given options and eliminate those that do not include both proteins and carbohydrates.
4. Recognize the role of glycoproteins: Glycoproteins play crucial roles in cell-cell interactions, signaling, and immune responses.
5. Conclude with the correct composition: Based on the definition and roles, glycoproteins are primarily composed of proteins and carbohydrates.