Question

Vertebrate immune responses involve communication over short and long distances. Which of the following statements best helps explain how cell surface proteins, such as MHC proteins and T cell receptors, mediate cell communication over short distances?

Answer 1

Answer:

The proteins receive electrical signals from nerve cells.

Explanation:

Answer 2

The immune system comprises immune cells that provide defense and protect the body cells and tissues from immunogens.

Immune cells send and receive signals for identifying and attacking pathogens and immunogens.

The cells communicate by:

The proteins interact directly with proteins on the surfaces of other cells.

This can be explained as:

• The immune response facilitates the action generally by lymphocytes and T cells.

• Over short distances, the T-cells and MHC interact with the proteins found on the externals receptors of other cells.

• The receptors recognize and bind the molecules through the surrounding.

Therefore, cells interact directly on protein surfaces.

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