The Proteins That Enable the HIV Virus to Bind to Cells

question 24

Multiple Choice

The proteins that enable the HIV virus to bind to cells are typically CD4 and CCR5.On what type of cells are these proteins typically observed?

• A) plasma cells
• B) dendritic cells
• C) effector helper T cells
• D) memory helper T cells
• E) both C and D

---

Definitions:

5th Wheel

A coupling device used primarily in semi-trucks to attach a trailer, characterized by a large pivoting plate.

Upper Coupler Assembly

The component at the front of a semi-trailer that hooks onto the hitch of a truck tractor, providing a connection point.

SAE Grade 8

A classification for high-strength bolts according to the Society of Automotive Engineers, indicating a high level of tensile strength.

Hook to Latch Clearance

Hook to latch clearance refers to the distance or space between a hook and latch mechanism, critical in ensuring a secure fit and operation of closures in vehicles.