5.1 cell recognition

Question 1

what are body defense mechanisms used for?

Answer 1

recognising foreign cells & targeting its specific immune response

Question 2

how could lymphocytes distinguish between self & non-self cells?

Answer 2

cell surface proteins

Question 3

where are specific surface proteins found on?

Answer 3

• pathogenic cells
• non-self material
• toxins
• abnormal body cells (eg. cancer cells)