| A | B |
|---|
| Macrophage | Type of phagocyte |
| pathogen | disease causing organism |
| lysosome | vesicle containing lytic enzymes |
| lytic enzymes | these break down the pathogen |
| pseudopodia | arms of the phagocyte which engulf the pathogen |
| phagosome | vesicle which forms around the pathogen |
| histamine | causes dilation of blood vessels |
| chemoattractants | chemicals given off by pathogen which attract phagocytes |
| non-specific | response same for all pathogens |
| phagocytosis | process of engulfing pathogens and destroying them |
| engulfing | surrounging the pathogen using pseudopodia |
| concentration gradient | phagocytes move up this towards pathogen |
| hydrolysis | process carried out by lytic enzymes |
