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Cell recognition and adhesion occur due to biochemicals of cell membranes named

1. proteins
2. lipids
3. proteins and lipids
4. glycoproteins and glycolipids

Correct answer: glycoproteins and glycolipids

Solution

Glycoproteins and glycolipids have carbohydrate portions on the cell surface that act as recognition tags and help cells adhere to one another. These exposed sugars are key in cell-cell communication and binding.

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