Biology 9700 · AS & A Level · Proteins

Proteins — practice question

In which places are antibodies and antigens located?

  • Aon surface of pathogens: antibodies; on surface of phagocytes: antibodies; in blood plasma: antigens
  • Bon surface of pathogens: antibodies; on surface of phagocytes: antigens; in blood plasma: antibodies
  • Con surface of pathogens: antigens; on surface of phagocytes: antibodies; in blood plasma: antigens
  • Don surface of pathogens: antigens; on surface of phagocytes: antigens; in blood plasma: antibodies

Worked solution & mark scheme

This 1-mark question has a full step-by-step worked solution and mark scheme.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI