What are macromolecules? Give examples.

Explanation

### Step-by-Step Solution:

1. **Definition of Macromolecules**:
Macromolecules are large, complex molecules that are typically found in a colloidal state within the intracellular fluid of cells. They play crucial roles in biological processes.

2. **Formation of Macromolecules**:
These molecules are usually formed through a process called condensation reaction, where smaller units (monomers) combine to form larger structures (polymers). This process is known as polymerization.

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