Once Y. pestis is in the human host, it is ingested by macrophages. Conditions within the macrophage activate certain genes in the bacterium, one of which is a gene for a capsule production. The capsule
A) allows the bacteria to float in water.
B) allows the bacteria to exchange DNA with other bacteria.
C) allows the bacteria to avoid phagocytosis.
D) provides a source of nutrients for the bacteria.
E) allows the bacteria to survive excess heat.

Question

Once Y. pestis is in the human host, it is ingested by macrophages. Conditions within the macrophage activate certain genes in the bacterium, one of which is a gene for a capsule production. The capsule
A) allows the bacteria to float in water.
B) allows the bacteria to exchange DNA with other bacteria.
C) allows the bacteria to avoid phagocytosis.
D) provides a source of nutrients for the bacteria.
E) allows the bacteria to survive excess heat.

Quizplus · Accepted Answer

The capsule allows the bacteria to avoid phagocytosis by the host's macrophages, allowing the bacteria to survive and replicate within the host.

Once Y Pestis Is in the Human Host, It Is Ingested