Suppose a white blood cell destroys invading bacteria by phagocytosis. Which statement best describes this process?

Question

a
The white blood cells are using passive transport and therefore are not using energy.
b
The white blood cells are using diffusion and therefore are not using energy.
c
The white blood cells are using active transport, and therefore are using energy.
d
The white blood cells are using osmosis and therefore are using energy.

Answer 1

The best statement that describes the process of phagocytosis by white blood cells is:

c The white blood cells are using active transport, and therefore are using energy.

Phagocytosis is a form of active transport because it involves the cell membrane engulfing particles (such as bacteria), which requires energy in the form of ATP to change the shape of the cell membrane.