Kristen cut her hand on a piece of glass. as the blood clots, how do white blood cells prevent bacteria on the glass from infecting her body ?

So white blood cell’s(WBCs for short) main job is to fight infections.
They do this by swallowing the infection.

You see,WBCs do not have a permanent shape.this means that they enlarge and decrease size of parts of their body.So they grow two long arm like structures called pseudopodia which swallow the infection.(pseudopodia means false feet).
You can see the process in the photo I attached from google

light dependent reactions:

release oxygen during the photolysis of wateroccur in the granaproduce atp

light independent reactions:

fix carbon dioxide occur in the stromaproduce glucose

hope this !