Question

select the correct answer from each drop-down menu. specialized cells such as white blood cells interact with foreign particles in the body. a particular cell belonging to this category recognizes bacteria and forms a covering around it, pinching off the vacuole. the cell then performs endocytosis. the foreign particles recognized by the particular type of cells differ from the ones recognized by another type of white blood cell. this situation indicates that the receptors are the same for all the cells, specific for the cells, never present on cells.

Explanation:

Receptors on cells are specific to the type of cell and the substances they recognize. Since different white blood cells recognize different foreign particles, this shows that the receptors are specific for the cells (they have specificity to bind to particular targets). "The same for all the cells" is incorrect as different cells recognize different particles. "Never present on cells" is also incorrect as receptors are present on cells for recognition.

Answer:

specific for the cells