The First Signal During Helper T-Lymphocyte Activation Involves

question 16

Multiple Choice

The first signal during helper T-lymphocyte activation involves

• A) BCR of the helper T-cell binding with free antigen and engulfing it.
• B) CD8 of the helper T-cell binding with MHC class III of the antigen-presenting cell.
• C) CD4 of the helper T-cell binding with MHC class I part of the antigen fragment.
• D) CD4 of the helper T-cell binding with MHC class II of the antigen-presenting cell.

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Definitions:

Collateral

Assets that are offered to secure a loan or other credit and that can be seized by the lender if the loan is unpaid.

Secured Parties

Creditors who have the right to seize collateral if a debtor fails to fulfill their obligation under a secured agreement.

Unsecured Creditors

Creditors who have extended credit without the protection of collateral, making their claims on a debtor’s assets secondary to those of secured creditors.

Collateral

Property or assets pledged by a borrower to secure a loan or other credit, and subject to seizure on default.