How Does HIV Kill T Cells

question 58

Multiple Choice

How does HIV kill T cells?

• A) It engulfs macrophages, which then enlarges and engulfs all other types of lymphocytes.
• B) It weakens red blood cells so that they no longer produce antibodies and attack antigens.
• C) It alters the DNA of the host T cell and causes the T cell to replicate HIV rather than itself.
• D) It attacks and destroys the suppressor T cells by altering their metabolism.

---

Definitions:

Phytochrome

A photoreceptor in plants that absorbs light primarily in the red and far-red regions, thereby regulating various aspects of growth and development.

Cryptochrome

A class of flavoproteins that are sensitive to blue light and have roles in the circadian rhythms of plants and animals.

Circadian Rhythm

A natural, internal process that regulates the sleep-wake cycle and repeats on each rotation of the Earth roughly every 24 hours.

Thigmomorphogenesis

The growth and developmental changes in plants that result from mechanical stimulation or touch.