DMPQ-Write a short note on cells of Human Immune system.

The immune system is a complex network of cells and organs that work together to defend against Foreign substances. There are various cells associated with immune system:

  1. B-cell: It is a type of white blood cell that makes antibodies. Antibodies are large Y-shaped proteins which bind to specific antigens. This signals the other cells of the immune system to get rid of the invading microbes.
  2. T-cell – These are designed to recognise 64 288 64 288 64S117.2 64 74.6 75.5c-23.5 6.3-42 24.9-48.3 48.6-11.4 42.9-11.4 132.3-11.4 132.3s0 89.4 11.4 132.3c6.3 23.7 24.8 41.5 48.3 47.8C117.2 448 288 448 288 448s170.8 0 213.4-11.5c23.5-6.3 42-24.2 48.3-47.8 11.4-42.9 11.4-132.3 11.4-132.3s0-89.4-11.4-132.3zm-317.5 213.5V175.2l142.7 81.2-142.7 81.2z"/> Subscribe on YouTube
the molecular signatures of particular proteins, such as those from bacteria, in order to activate an immune response.
  • Macrophage – It is the first cell to recognize and engulf foreign substances. It may break down these substances and present the smallerproteins to the T lymphocytes .
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