The glycoprotein associated with erythrocytes is called a/an _____ and the glyco

Question

The glycoprotein associated with erythrocytes is called a/an _____ and the glycoprotein associated with disease causing organisms is called a/an _____. a. agglutinin: antigen b. agglutinogen: antigen c. antige: agglutinogen d. Antigen: antibody Which of the following statements is true? a. Antibodies and antibiotics work the same way. b. Antibodies are chemicals that will kill pathogens. c. Antibodies will bind to the antigens and literally destroy the foreign organism. d. Antibodies will bind to the antigens and this complex will attract other leukocytes to the foreign organism. Which of the following are indirectly responsible for destroying a pathogen if it is the pathogen's second time attacking our body? a. macrophages b. memory B cells T and B cells are activated by _______. a. pathogens b. interleukins and cytokines c. exposure to a specific antigen d. cells infected with pathogens e. all the choices are correct The main purpose of a vaccination is to

Explanation / Answer

1 (b)

2 (d)

Mode of action of an antibody and antibiiotics is different. An antibody can not destroy a pathogen . They only bind to the molecules and cause their destruction by special mechanisms. Sometimes they cause clumping of the antigens. In other cases, they attach to the surface of the antigens and make them recognizable by other cells of the immune system which ultimately kill the pathogens by phagocytosis. Antibiotics on the other hand, create such a condition that the microorganism can not perform its normal cellular function. Antibiotics like penicillin prevents cell wall synthesis by bacteria, while streptomycin prevents protein synthesis of the bacteria.

3 (b)

4(e). All the choices are correct.

5 (a) The principle of vaccine development is inducing the formation of memory cells in the body . Once it is done, when the person is naturally infected by the same patrhogen in future, the long-lived memory B cells and memory T cells are activated and a more intense and more rapid immune response is initiated .

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