phagocytic cells

Question 1

What are phagocytic cells?

Answer 1

Cells that can engulf and digest foreign particles, bacteria, and dying cells.

Question 2

True or False: Phagocytic cells are a type of immune cell.

Answer 2

True

Question 3

Which of the following is a primary type of phagocytic cell? (A) Neurons (B) Macrophages (C) Erythrocytes

Answer 3

B) Macrophages

Question 4

Fill in the blank: Phagocytosis is the process by which phagocytic cells ______ foreign particles.

Answer 4

engulf

Question 5

What is the role of neutrophils in the immune response?

Answer 5

Neutrophils are the first responders to sites of infection and are key players in phagocytosis.

Question 6

True or False: Dendritic cells are involved in antigen presentation after phagocytosis.

Answer 6

True

Question 7

What is the main function of macrophages?

Answer 7

To engulf and digest pathogens, dead cells, and debris.

Question 8

Which type of phagocytic cell is known for its role in chronic inflammation?

Answer 8

Macrophages

Question 9

What is the term for the recognition of pathogens by phagocytic cells?

Answer 9

Pattern recognition

Question 10

Fill in the blank: Phagocytic cells can be activated by ______, which enhances their ability to fight infections.

Answer 10

cytokines

Question 11

What type of immune response do phagocytic cells primarily participate in?

Answer 11

Innate immune response

Question 12

True or False: Phagocytic cells can only ingest bacteria.

Answer 12

False

Question 13

What is the process called when phagocytes move towards a chemical signal?

Answer 13

Chemotaxis

Question 14

Which phagocytic cells are derived from monocytes?

Answer 14

Macrophages and dendritic cells

Question 15

What is the role of lysosomes in phagocytic cells?

Answer 15

To contain enzymes that digest engulfed materials.

Question 16

Fill in the blank: The process of phagocytosis involves the formation of ______ around the particle.

Answer 16

phagosome

Question 17

What is the function of the phagolysosome?

Answer 17

To fuse the phagosome with lysosomes for digestion of the engulfed material.

Question 18

Which phagocytic cell is primarily involved in the clearance of apoptotic cells?

Answer 18

Macrophages

Question 19

True or False: Phagocytosis can only occur in the presence of antibodies.

Answer 19

False

Question 20

What do we call the ability of phagocytic cells to recognize and bind to pathogens?

Answer 20

Opsonization

Question 21

Which cytokine is known to enhance the phagocytic activity of neutrophils?

Answer 21

Interleukin-8 (IL-8)

Question 22

Fill in the blank: During an immune response, phagocytic cells can produce ______ to recruit more immune cells.

Answer 22

chemokines

Question 23

What is the significance of phagocytic cells in tissue repair?

Answer 23

They help clear debris and promote healing by releasing growth factors.

Question 24

True or False: Phagocytic cells are only important during infections.

Answer 24

False

Question 25

What is the function of eosinophils in relation to phagocytosis?

Answer 25

Eosinophils are involved in the defense against parasites and play a role in allergic reactions.

Question 26

Which type of phagocytic cell is most abundant in the bloodstream?

Answer 26

Neutrophils