T Helper Cells Recognize Which of the Following

question 39

Multiple Choice

T helper cells recognize which of the following?

• A) exogenous peptide bound to class II
• B) native extracellular viral proteins
• C) endogenous peptides bound to class I
• D) microbe-specific structures

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Definitions:

Lone Pairs

Pairs of valence electrons that are not shared with another atom and do not participate in bonding, but significantly influence the shape and properties of molecules.

Lewis Structures

Diagrams that represent the bonding between atoms of a molecule and the lone pairs of electrons that may exist in the molecule.

Molecular Formula

A notation that uses chemical symbols and numerical subscripts to represent the types and quantities of atoms in a molecule.

Valence

The combining capacity of an element or particle, often determined by the number of electrons that an atom can share, gain, or lose.