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1.2 Cells, Organs & Molecules of Immunity β Test 1
Q1. All blood and immune cells ultimately arise from:β Haematopoietic stem cells
Q2. The two principal lineages derived from the haematopoietic stem cell are:β Myeloid and lymphoid
Q3. The lymphoid lineage gives rise to:β T cells, B cells and NK cells
Q4. The most abundant leukocyte in human blood is the:β Neutrophil
Q5. Antibodies are secreted by:β Plasma cells
Q6. Cell-mediated immunity is principally carried out by:β T lymphocytes
Q7. The primary (central) lymphoid organs are:β Bone marrow and thymus
Q8. The largest secondary lymphoid organ is the:β Spleen
Q9. The soluble (humoral) effector molecules of immunity include all of the following EXCEPT:β Haemoglobin
Q10. Granulocytes include:β Neutrophils, eosinophils and basophils
Q11. The professional antigen-presenting cells are:β Dendritic cells, macrophages and B cells
Q12. The mononuclear phagocyte system refers chiefly to:β Monocytes and tissue macrophages
Q13. NK cells are classified as part of the:β Innate immune system (lymphoid lineage)
Q14. Cytokines are best described as:β Soluble signalling proteins that regulate immune responses
Q15. The complement system is a group of plasma proteins that mediate:β Lysis, opsonisation and inflammation
Q16. Mast cells are predominantly located in:β Connective and mucosal tissues
Q17. Agranulocytes (mononuclear leukocytes) are:β Lymphocytes and monocytes
Q18. Dendritic cells are most important because they:β Are the most potent activators of naive T cells
Q19. Lymph nodes function mainly to:β Filter lymph and initiate adaptive responses
Q20. The skin and mucosal epithelium represent which line of defence?β The first line (innate physical barrier)