Phagocytosis

Question 1

What are phagocytes?

Answer 1

• They are specialised white blood cells that engulf and destroy pathogens

Question 2

What are the two types of white blood cells?

Answer 2

• Neutrophills
• Macrophages

Question 3

What are neutrophills?

Answer 3

• They engulf and digest the entire pathogen

Question 4

What are macrophages?

Answer 4

• engulf and digest the pathogen except for its antigens

Question 5

NEUTROPHILL - How is glycogen adapted for its function?

Answer 5

• provides source of glucose

Question 6

NEUTROPHILL - How is a mutli-lobed nucleus adapted for its function?

Answer 6

• helps neutrophill pass in small gaps

Question 7

NEUTROPHILL - How is mitochondria adapted for its function?

Answer 7

• provides ATP

Question 8

NEUTROPHILL - How are phagosomes adapted for its function?

Answer 8

• where killing and digestion of engulfed particles take place

Question 9

What does engulf mean?

Answer 9

• To enclose or cover something completely.

Question 10

What does phagosome mean?

Answer 10

• The vesicles in which a pathogen or damaged cell is engulfed by a phagocyte

Question 11

What is an lysosome?

Answer 11

• It contains the hydrolytic enzymes for the breakdown of waste materials

Question 12

What is phagolysosome?

Answer 12

• When a phagosome combines with lysosome

Question 13

What is exocytosis?

Answer 13

the bulk transport of materials out of the cell

Question 14

How does phagocytosis work?

Answer 14

• Microbes adhere to phagocyte
• Phagocyte engulfs the particle
• Phagocytic vesicle (contains antigen) is fused with lysosome
  -microbes is fused with vesicle is killed and digested by lsysomal enzymes within the phagolysosome
• indigestible and residual material is removed by exocytosis.