Multiple Choice
Which of the following is likely to be a response by a receptor protein to an approaching signal molecule?
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21. The Immune System
Cell Communication: Surface Receptors & Adhesion Molecules
Multiple Choice
If the endothelial cells of the blood vessels in the body did not possess adhesion molecules, which of the following would occur?
A
The immune cells which respond to infection or injury would not be able to leave the blood stream.
B
The immune cells would not be able to detect where the infection is in the body.
C
The immune cells would not be able to phagocytose the infecting microbes and damaged tissue.
D
The blood vessels would adhere to the immune cells allowing them entry to infected regions of the body.
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