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. Fill in the blanks below, using words from the supplied word bank (case-sensit

ID: 263107 • Letter: #

Question

. Fill in the blanks below, using words from the supplied word bank (case-sensitive). Not all words will be used, and some may be used more than once.

When naïve helper T cells are initially activated on a______ , most differentiate into either TH1 or TH2 effector cells, depending mainly on the_______ in their environment. TH1 cells activate_______ , _______, and ___________, while TH2 cells activate mainly_______ . In both cases, the effector helper T cells recognize the same complex of foreign peptide and_______ protein on the target cell surface as they initially recognized on the_________ that activated them. They activate their________ by a combination of membrane-bound and secreted co-stimulatory proteins. One membrane-bound signal protein used by both TH1 and TH2 cells is__________ ligand.

dendritic cell

basophils

dendritic cell

cytotoxic T cells

macrophages class II

MHC signal proteins

target cells

CD40 nuclei

B cells

cancer cells

Explanation / Answer

. Fill in the blanks below, using words from the supplied word bank (case-sensit