Which of these substances is not part of the immune system?
A) B-cells
B) Cytokines
C) Neutrophils
D) Antibodies
E) Lipoproteins

Question

Which of these substances is not part of the immune system? 
A) B-cells 
B) Cytokines 
C) Neutrophils 
D) Antibodies 
E) Lipoproteins

Quizplus · Accepted Answer

Lipoproteins are not part of the immune system, but rather play a role in lipid transport in the body. B-cells, cytokines, neutrophils, and antibodies are all part of the immune system and play various roles in defending the body against pathogens.

Which of These Substances Is Not Part of the Immune