Question

Cellular slime molds live as individual amoeboid cells when food is plentiful. When food decreases, the cells may come together by the thousand in a form called a slug. This slug possesses cells called sentinel cells, which display a primitive immune function because they Group of answer choices

1. circulate through the slug, engulfing bacteria.
2. inserting spikes into bacteria, causing lysis of the bacteria.
3. will produce antibodies in the presence of a virus.
4. release signal molecules similar to cytokines.

Answer 1

1. circulate through the slug, engulfing bacteria

Step-by-step explanation:

A sentinel cell is a cell of the immune system that is in charge of "eating" any kind of parasite in the body. In this case, it circulates through the slug and whenever it sees a bacterium, virus or foreign object, the sentinel cell engulfs it immediately.

Once the sentinel cell has eaten the bacterium, it produces several enzymes and substances that degrade the bacterium.