Explain the association of carbohydrate to the plasma membrane and its significance.

Explanation

### Step-by-Step Solution

1. **Introduction to Carbohydrates in Plasma Membrane**:
- Carbohydrates are an essential component of the plasma membrane. They are typically found attached to proteins (glycoproteins) or lipids (glycolipids).
- These carbohydrate molecules usually constitute less than 10% of the total weight of the membrane.

2. **Formation of Structures**:
- The sugar residues can form various structures, often in the form of short branched chains.
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