Mycobacterium Tuberculosis Phagocytosed by Macrophages in Granulomas Can Be Killed

question 1

Multiple Choice

Mycobacterium tuberculosis phagocytosed by macrophages in granulomas can be killed by endogenous nitric oxide (NO) after these macrophages become activated by T-helper cells. Which biologically active substance stimulates the formation of NO in macrophages?

• A) Platelet-activating factor
• B) Interferon-γ
• C) Interleukin-1
• D) Tumor necrosis factor
• E) Prostaglandin E₂

---

Definitions:

Barriers To Communication

Obstacles that impede the exchange of information between individuals or groups, leading to misunderstandings or conflicts.

Nonverbal Cues

Communication without words, including gestures, facial expressions, posture, and other body language, which can convey messages and emotions.

E-mails

Electronic messages sent over the Internet, used for personal, academic, or business communication.

Electronic Communication

The transmission of information using electronic means such as email, social media, and text messaging.