Facilitated diffusion and active transport both shows transport saturation.

Answer

**Step-by-Step Solution:**

1. **Understanding Facilitated Diffusion:**
- Facilitated diffusion is a type of passive transport that allows substances to cross membranes with the assistance of special proteins (transporters or channels).
- This process does not require energy (ATP) as it moves substances down their concentration gradient.

2. **Understanding Active Transport:**
- Active transport, on the other hand, is a process that requires energy (ATP) to move substances against their concentration gradient.
- This is done using specific transport proteins that can pump molecules from areas of lower concentration to areas of higher concentration.

3. **Saturation in Transport Mechanisms:**
- Both facilitated diffusion and active transport involve specific proteins that can become saturated.
- Saturation occurs when all available transport proteins are occupied, meaning that the rate of transport reaches a maximum limit.

4. **Conclusion:**
- Since both facilitated diffusion and active transport can reach a point where the transport rate is maximized due to the saturation of transport proteins, the statement that "facilitated diffusion and active transport both show transport saturation" is true.

5. **Final Answer:**
- Therefore, the correct answer to the question is **True**.

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