The Opa gene is used to identify this endotoxin-producing bacterium that grows well in the high- CO₂ conditions inside phagocytes.

검증된 단계별 안내

Identify the bacterium described by the problem: it produces endotoxin, grows well in high-CO₂ conditions inside phagocytes, and is associated with the Opa gene.

Recall that the Opa gene encodes opacity-associated proteins involved in bacterial adherence and invasion, which is characteristic of Neisseria species.

Understand that endotoxins are lipopolysaccharides (LPS) found in the outer membrane of Gram-negative bacteria, such as Neisseria gonorrhoeae and Neisseria meningitidis.

Recognize that Neisseria gonorrhoeae is known for expressing Opa proteins and thriving in high-CO₂ environments, especially inside phagocytic cells.

Conclude that the bacterium identified by the Opa gene and described conditions is Neisseria gonorrhoeae.

비슷한 문제에 대한 검증된 영상 답변:

이 영상 해법은 위 문제에 도움이 된다고 튜터들이 추천한 것입니다.

영상 길이:

도움이 되었나요?

주요 개념

질문에 올바르게 답하기 위해 반드시 이해해야 하는 핵심 개념들은 다음과 같습니다.

Opa Gene and Its Role in Bacterial Identification

The Opa gene encodes opacity-associated proteins found in certain bacteria, notably Neisseria species. These proteins facilitate bacterial adhesion and invasion of host cells, making the Opa gene a useful molecular marker for identifying these pathogens.

Endotoxins in Gram-negative Bacteria

Endotoxins are lipopolysaccharide components of the outer membrane of Gram-negative bacteria. They trigger strong immune responses and are key virulence factors, helping to identify bacteria that produce them, such as Neisseria gonorrhoeae.

Bacterial Growth in High CO₂ Environments Inside Phagocytes

Some bacteria, like Neisseria species, thrive in high CO₂ conditions found inside phagocytic cells. This adaptation allows them to survive and multiply within host immune cells, contributing to their pathogenicity and aiding in their identification.