State true or false. All cells contain the same kinds of proteins in the same relative locations.

Answer

### Step-by-Step Solution:

1. **Understanding the Question**: The question asks whether all cells contain the same kinds of proteins in the same relative locations. We need to determine if this statement is true or false.

2. **Definition of Cells**: Cells are the basic structural and functional units of life. They perform various functions depending on their type and location in an organism.

3. **Protein Composition in Cells**: Each type of cell has a unique protein composition. This is because different cells have different roles and functions in the body. For example, muscle cells contain proteins that help in contraction, while nerve cells have proteins that facilitate signal transmission.

4. **Function and Location**: The variation in protein types and their locations within cells is directly related to the specific functions that each cell type performs. For instance, proteins involved in metabolism will be located in the mitochondria of cells, while proteins involved in structural support may be found in the cytoskeleton.

5. **Conclusion**: Since different cells have different types of proteins and these proteins are located in various places depending on the cell's function, the statement that "all cells contain the same kinds of proteins in the same relative locations" is false.

### Final Answer:
**False**

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