Table of contents

1. Overview of Cell Biology2h 49m
2. Chemical Components of Cells1h 14m
3. Energy1h 33m
4. DNA, Chromosomes, and Genomes2h 31m
5. DNA to RNA to Protein2h 31m
6. Proteins1h 36m
7. Gene Expression1h 42m
8. Membrane Structure1h 4m
- The Lipid Bilayer
  38m
- Membrane Proteins
  25m
9. Transport Across Membranes1h 52m
10. Anerobic Respiration1h 5m
11. Aerobic Respiration1h 11m
12. Photosynthesis52m
13. Intracellular Protein Transport2h 18m
14. Cell Signaling1h 28m
15. Cytoskeleton and Cell Movement1h 39m
16. Cell Division3h 5m
17. Meiosis and Sexual Reproduction50m
18. Cell Junctions and Tissues48m
19. Stem Cells13m
- Stem Cells
  13m
20. Cancer44m
21. The Immune System1h 6m
22. Techniques in Cell Biology1h 41m

14. Cell Signaling

Overview of Cell Surface Receptors

Cell Biology

14. Cell Signaling

Overview of Cell Surface Receptors

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Multiple Choice

Which component of the cell surface is primarily responsible for cell-cell recognition?

Phospholipids

Integral membrane proteins involved in ion transport

Glycoproteins

Cholesterol

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Verified step by step guidance

Understand the concept of cell-cell recognition: Cell-cell recognition is a process where cells identify and interact with each other, often mediated by specific molecules on the cell surface.

Review the role of glycoproteins: Glycoproteins are proteins with carbohydrate chains attached. These carbohydrate chains act as unique identifiers, or 'tags,' that are recognized by other cells, making glycoproteins critical for cell-cell recognition.

Analyze the other options: Phospholipids primarily form the structural bilayer of the membrane and are not involved in recognition. Integral membrane proteins involved in ion transport are specialized for moving ions across the membrane, not recognition. Cholesterol contributes to membrane fluidity and stability but does not play a role in cell-cell recognition.

Conclude that glycoproteins are the correct answer: Glycoproteins are the primary component responsible for cell-cell recognition due to their carbohydrate chains, which serve as recognition signals.

Relate this to biological processes: Cell-cell recognition is essential in processes like immune response, tissue formation, and communication between cells, all of which rely on glycoproteins.