5.2 phagocytosis

Question 1

what are the 2 types of white blood cells?

Answer 1

phagocytes and lymphocytes

Question 2

describe phagocytosis

Answer 2

• phagocyte attracted by a substance
• attached to receptors on its cell- surface membrane
• pathogen engulfed
• lysosomes release lysozymes
• hydrolysed produced are absorbed or released by exocytosis

Question 3

what are phagocytes an example of?

Answer 3

antigen- presenting cells

Question 4

what is the role of lysozymes?

Answer 4

hydrolyse large insoluble bacteria into small soluble products