Match the following leukocytes with the correct definition.      

____Basophil      

____B lymphocyte      

____Neutrophil      

____Monocyte       

____T lymphocyte      

____Eosinophil 

a. Destroys bacteria; directly phagocytoses bacteria

b. Responds to parasitic worm infection and mediates the allergic response

c. Activates all parts of the immune response; directly kills cancer or virally infected cells

d. Secretes inflammatory mediators

e. Agranulocyte that matures into macrophage

f. Agranulocyte that secretes antibodies

Video transcript

Hey, everyone. Let's take a look at this question together. This leukocyte responds to parasitic infections and initiates an allergic response. Is it answer choice? A monocytes answer choice. B basophils, answer choice. C eosinophils or answer choice D neutrophils. Let's work this problem out together to try to figure out which of the following answer. Choices is the type of leukocyte that responds to parasitic infections and initiates an allergic response. So in order to solve this question, we have to recall what we have learned about the different types of leukocytes and which type responds to parasitic infections to initiate that allergic response. And we can recall that there are five types of leukocytes which are the basophils, neutrophils, eosinophils, lymphocytes and monocytes. And the type of leukocyte that we want to focus on are the eosinophils, which the eosinophils make up about 1% to 4% of the leukocytes on average. And the eosinophils are involved in chronic inflammation, allergic reactions and host defense against parasitic infections, which means that the type of leukocyte that responds to parasitic infections and initiates an allergic response is answer choice. C eosinophils and all other answer choices are incorrect I hope you found this video to be helpful. Thank you and goodbye.