Distinguish broad pathogen responses from antigen-specific responses that develop immunological memory.
Tę umiejętność sprawdzają 4 zadania wzorowane na arkuszach IB z lat 2022–2026.
Three statements describe possible immune responses. I. Recognition of features shared by many pathogens II. A much stronger antigen-specific response after a second exposure III. Rapid engulfment of microbes by phagocytes Which statements describe innate…
Which cell can provide an innate defence by engulfing microbes without first selecting a clone with a matching antigen receptor? A. A plasma cell secreting one antibody specificity B. A memory B cell C. An activated helper T cell D. A macrophage
Which cell contributes directly to innate defence by engulfing invading bacteria? A. An antibody-secreting plasma cell B. A memory B lymphocyte C. A neutrophil D. An antigen-specific cytotoxic T cell
Plant energy capture and animal cell functions support life. (a) Outline reasons for using stem cells therapeutically. (b) Describe how leaf cells use light energy. (c) Explain how cells and cell components in blood protect against infectious disease.
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