- The symbol representing the pathogen is a star (★).
- Diagram 1 shows the process of endocytosis by a phagocyte.
- The symbol for the phagocyte is an irregular, amoeba-like shape with a nucleus inside.
- The symbol for the helper T-cell is a circle with "Th" inside and three protruding arms ending in Y-shaped structures.
- The specialized surface proteins on the helper T-cell are the three Y-shaped structures on its surface; these should be circled.
- No, not all helper T-cells are the same. Evidence from Model 1 shows that different helper T-cells have different surface proteins ("arms") that bind to specific antigens presented by APCs, indicating they are specialized for different antigens.
Parent Tip: Review the logic above to help your child master the concept of immunity worksheet answers.
