A: resist to invasion of pathogens and neutralize their toxic products
B: exclude the aging and injuried cells and keep the balance of inner
environment
C: surveil and clear transformed cells inside the body
D: present unresponsive state to antigenic foreign substances
E: present unresponsive state to self antigenic
举一反三
- The function of immunological defense refers to ( ). A: prevent pathogenic microorganisms invading the body B: inhibit the proliferation and spread of pathogenic microorganisms in the body C: clear the old, dead, or damaged cells in the body D: remove pathogenic microorganisms and their products from the body
- They are the cells of the immune system that involved in protecting the body against both infectious disease and foreign invaders, which are also known as white blood cells(WBCs). What are they? A: Erythrocytes. B: Leukocytes. C: Platelets. D: Plasma.
- 中国大学MOOC: White blood cells patrol the body searching for potential sources of infection and destroy invading pathogens, such as ________, ________, ________, and ________.
- Which of the following descriptions are correct? A: Class I MHC present endogenous antigens to CD4+ T cells B: Class I MHC present endogenous antigens to CD8+ T cells C: Class II MHC present exogenous antigens to CD4+ T cells D: Class II MHC present exogenous antigens to CD8+ T cells
- The functions of the spleen don’t include:() A: Elimination of aging blood cells B: Immune reaction C: Production of plasma cells D: Proliferation of lymphocytes E: Differentiation and development of lymphoid hematopoietic stem cells
内容
- 0
White blood cells patrol the body searching for potential sources of infection and destroy invading pathogens, such as ________, ________, ________, and ________. A: viruses B: bacteria C: fungi D: parasitic microorganisms
- 1
In<br/>testis, spermatogenic cells exclude() A: spermatogonium B: primary spermatocyte C: Supporting cells D: Secondary spermatocyte E: Spermatid
- 2
Which of the following narrative about hormones is wrong? ____ A: Hormones are highly bioactive substances secreted by various glands in the body B: Most hormones are transported to target cells long distance away through blood circulation C: Some hormones can diffuse to adjacent cells through tissue fluid D: Hormones secreted by nerve cells can reach the adenohypophysis through the pituitary portal vein
- 3
The patient, male, 30 years old, was found HIV antibody positive in physical examination. Which kind of cells in his body is most significantly reduced A: CD4 + T cells B: CD8 + T cells C: B cells D: NK cells E: Monocytes
- 4
The output of a Mealy machine depends on its A: inputs B: present state C: next state D: answers (a) and (c)