There are two main types of phagocytes:

* Neutrophils: These are the most common type of white blood cell and are the first responders to infection. They are highly effective at killing bacteria.

* Macrophages: These are larger than neutrophils and have a longer lifespan. They can engulf larger particles and also play a role in initiating the immune response.

Both neutrophils and macrophages use a process called phagocytosis to engulf and destroy bacteria. This involves:

1. Chemotaxis: The phagocytes are attracted to the site of infection by chemical signals released by the bacteria.

2. Adherence: The phagocyte attaches to the bacteria.

3. Ingestion: The phagocyte engulfs the bacteria, forming a phagosome.

4. Digestion: The phagosome fuses with a lysosome, which contains enzymes that break down the bacteria.

So, while there are many types of white blood cells, the ones responsible for engulfing and destroying bacteria are called phagocytes.