超星 - 章节练习-CK+CD+CAM

单选题

Which of the following is NOT correct about the cytokines?

A. Small soluble proteins
B. They work only when they bind to cytokine receptors
C. They mainly play an endocrine role
D. They are the messengers of communication between cells
E. They have pleiotropic biological effects

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单选题

IL-5 may enhance the effects of IL-4 in the class switch to IgE. This property is called

A. Pleiotropism
B. Redundancy
C. Synergism
D. Antagonism
E. Cascade fashion

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单选题

IL-2 produced by the cells can stimulate their own growth

Autocrine
B. Endocrine
C. Paracrine
D. Pleiotropism
E. Synergism

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单选题

Which of the followings is not the function of cell adhesion molecules?

A. It is involved in the interaction between immune cells
B. Regulating the activation of immune cells
C. Involved in the adhesion of leukocytes to vascular endothelium in inflammatory response
D. Lymphocyte homing
E. Binding cytokines to mediate cell signal transduction

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