Question

a white blood cell (wbc) encounters bacteria in a scrape on the knee of a child who has fallen off of his bicycle. the wbcs job is to take the bacteria inside of itself and destroy the bacteria. if the bacteria cannot be moved across the wbc membrane, how will the wbc most likely take it in?
phagocytosis
exocytosis
facilitated diffusion
pinocytosis

Explanation:

Phagocytosis is a process by which cells like white - blood cells engulf and digest large particles such as bacteria. Exocytosis is the process of expelling substances from the cell. Facilitated diffusion is for the transport of small molecules across the membrane with the help of transport proteins. Pinocytosis is the uptake of liquid and small particles. Since the WBC needs to take in bacteria, phagocytosis is the most appropriate process.

Answer:

phagocytosis