Question

What are the primary components of a lipid raft in the context of bio-nanoelectronics?

• A. DNA and RNA
• B. Proteins and carbohydrates
• C. Cholesterol and sphingolipids
• D. Enzymes and nucleotides

Hint:

Lipid raft composition → {Cholesterol + Sphingolipids}

Answer 1

The Correct Option is C

Concept:
Lipid rafts are specialized microdomains found within the cell membrane. These regions are enriched with specific lipids and proteins and play important roles in cellular signaling, membrane organization, and molecular transport. In bio-nanoelectronics, lipid rafts are studied for their potential use in biomolecular sensing and nanoscale device interfaces.
Step 1:Structure of the cell membrane.
The cell membrane is composed mainly of a phospholipid bilayer. Within this bilayer, certain lipids cluster together to form lipid raft domains.
Step 2:Key molecular components.
Lipid rafts are primarily composed of:

• Cholesterol
• Sphingolipids

These molecules create tightly packed, ordered regions within the membrane.
Step 3:Role in bio-nanoelectronics.
Because lipid rafts concentrate signaling proteins and receptors, they are important in:

• Biosensor design
• Membrane-based nanodevices
• Molecular signal transduction studies

Conclusion:
Thus, the primary components of lipid rafts are cholesterol and sphingolipids.