Name types of integral protein molecules present in the cell membrane.

Explanation

### Step-by-Step Solution:

1. **Understanding Integral Proteins**: Integral proteins are a type of membrane protein that is permanently attached to the biological membrane. They play crucial roles in various cellular functions, including transport and communication.

2. **Identifying Types of Integral Proteins**: There are two main types of integral proteins found in the cell membrane:
- **Carrier Proteins**: These proteins facilitate the transport of specific substances across the cell membrane. They bind to molecules and change shape to shuttle them across the membrane.
- **Channel Proteins**: These proteins form pores or channels in the membrane, allowing specific ions or water molecules to pass through. They enable the movement of substances down their concentration gradient.

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