Which of the Following Comparisons Between T_H1 and T_H2 Cells $\gamma$

question 1

Multiple Choice

Which of the following comparisons between T_H1 and T_H2 cells is true?

• A)T_H1 cells produce interleukin (IL)-1 but not IL-2,and T_H2 cells produce IL-2 but not IL-1.
• B)T_H1 cells are class I major histocompatibility complex (MHC)restricted,and T_H2 cells are class II MHC restricted.
• C)The chemokine receptors CXCR3 and CCR5 are more highly expressed on T_H2 cells than on T_H1 cells.
• D)T_H2 cells are more likely to bind to E-selectin and P-selectin on endothelial cells than are T_H1 cells.
• E)T_H1 cells produce interferon (IFN)-\(\gamma\) but not IL-4,and T_H2 cells produce IL-4 but not IFN-\(\gamma\)

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Definitions:

Asymmetric Centers

An asymmetric center in a molecule is a carbon or other atom bonded to four different groups, creating chirality and enabling optical activity.

Specific Rotation

A measure of the amount a substance rotates the plane of polarized light, specific to its molecular structure and concentration.

Dextrorotatory

Describes a substance that rotates the plane of polarized light to the right, or clockwise, as seen by an observer towards the light source.

Levorotatory

Describing a substance that rotates the plane of polarized light to the left or counterclockwise.