How does the immune system of vertebrates utilize a chemical concentration gradient?
A) The immune system produces thousands of histamines that act solely to create a histamine diffusion barrier.
B) The immune system generates a gradient of reactive oxygen intermediates to increase the amount of toxic radicals and peroxides to combat invading pathogens.
C) The immune system releases chemical signals called chemokines, which create a chemical gradient that leukocytes use in migrating toward the infection site.
D) The vertebrate immune system does not use chemical gradients.

Question

Quizplus · Accepted Answer

The immune system releases chemical signals called chemokines, which create a chemical gradient that leukocytes use in migrating toward the infection site. This process is known as chemotaxis and is essential for the immune system to move immune cells to the site of infection to fight off pathogens.

How Does the Immune System of Vertebrates Utilize a Chemical