Textbook Question
Indicate which statements are true. Correct all false statements by changing the underlined words.
__________ Phagocytes exhibit chemotaxis toward a pathogen.
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19. Innate Immunity
Cells of the Immune System: Granulocytes
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Which of the following cytokines acts primarily as a signal between leukocytes?
A
Insulin
B
Thyroxine
C
Erythropoietin
D
Interleukin
Verified step by step guidance1
Understand the role of cytokines: Cytokines are small proteins important in cell signaling, especially in the immune system where they mediate communication between cells such as leukocytes (white blood cells).
Identify the function of each option: Insulin regulates blood glucose levels, Thyroxine is a thyroid hormone involved in metabolism, and Erythropoietin stimulates red blood cell production, none of which primarily signal between leukocytes.
Recognize that Interleukins are a group of cytokines specifically produced by leukocytes to communicate with other leukocytes, coordinating immune responses.
Conclude that among the options, Interleukin is the cytokine that acts primarily as a signal between leukocytes.
Summarize that the key to solving this problem is understanding the specific biological roles of each molecule and knowing that interleukins are the main cytokines for leukocyte communication.
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