...called an antigen. Antigens include molecules belonging...
...different types of antigens, and they carry...
...can distinguish among antigens with molecular shapes...
...cells recognize specific antigens through their plasma...
...contact with foreign antigens, creates an enormous...
...to millions of antigens, and thus millions...
...potential pathogens. 2. Antigens interact with specific...
...of the microbe’s antigens activates the lymphocyte,...
...to most self antigens, but T cells...
...of responses to antigens: a humoral response...
...bind to foreign antigens. • (1) An...
...fragments of tumor antigens to TC cells....
...binding with specific antigens. This is assisted...
...B cells. Many antigens (primarily proteins), called...
...proteins), called T-dependent antigens, can trigger a...
...T cells. Other antigens, such as polysaccharides...
...function as T-independent antigens. These include the...
...bacterial flagella. These antigens bind simultaneously to...
...response than T-dependent antigens and generates no...
...5-day life span. Antigens that elicit a...
...venom act as antigens that induce an...
...of antibodies to antigens to form antigen-antibody...
...can act as antigens, stimulating an immune...
...blood has A antigens on the surface...
...another individual. B antigens are found on...
...A and B antigens are found on...
...to blood group antigens. Thus, an individual...
...Because blood group antigens are polysaccharides, they...
...to certain environmental antigens, called allergens. One...

...recognize and eliminate antigens. • Explain the...
...millions of different antigens. • Describe the...
...wide variety of antigens. (Figure 20.10, Figure...
...to recognize myriad antigens. The students will...
...so many different antigens that they have...
...so many different antigens that they have...
...and bind to antigens on toxins in...
...antibodies and their antigens. It also highlights...
...bind to their antigens in a lock-and-key...

...Lymphocytes recognize specific antigens. Any foreign molecule...
...an antigen. Most antigens are large molecules...
...or polysaccharides. Most antigens are cell-associated molecules...
...receptors bind to antigens via noncovalent bonds...
...and bind with antigens with the same...
...cells recognize intact antigens, however, the receptors...
...small fragments of antigens that are displayed...
...pieces, called peptide antigens or antigen fragments....
...fragments. These peptide antigens then bind to...
...derived from foreign antigens that have been...
...display such peptide antigens by virtue of...
...display bound peptide antigens are recognized by...
...antigen-presenting cells, display antigens for recognition by...
...immune responses to antigens: humoral and cell-mediated....
...interacting with peptide antigens displayed by antigen-presenting...
...exposed to foreign antigens, acting to trigger...
...dendritic cells capture antigens, they migrate from...
...where they present antigens, via class II...
...response by presenting antigens to memory helper...
...cells mainly present antigens to helper T...
...wide variety of antigens, whereas a B...
...span. Because most antigens recognized by B...
...of antibodies to antigens can interfere with...
...of antibodies to antigens is the basis...
...the introduction of antigens into the body...
...can act as antigens, stimulating an immune...
...blood has A antigens on the surface...
...blood cells. B antigens are found on...
...A and B antigens are found on...
...to blood group antigens. An individual with...
...to certain environmental antigens, called allergens. The...
...at presenting viral antigens to circulating lymphocytes....
...in HIV surface antigens also have hampered...