Which of the following would be an example of chemotaxis?
A) A white blood cell moves toward an injury site due to the release of certain chemicals by injured cells.
B) Platelets are attracted to the rough surface of damaged blood vessels.
C) Red blood cells move due to pressure gradients generated by the heart.
D) A white blood cell can move into and out of blood vessels.

Question

Quizplus · Accepted Answer

Chemotaxis refers to the movement of an organism or cell along a chemical concentration gradient toward or away from the chemical stimulus. In this case, a white blood cell moving toward an injury site due to chemicals released by injured cells is an example of chemotaxis, as the cell is moving in response to chemical signals.

Which of the Following Would Be an Example of Chemotaxis