WBCs - Youtube video

Question 1

State the synonym for WBCs

Answer 1

Leukocytes

Question 2

Leukocytes / …. …. … are specialised celss that … function…..
All leukocytes = originate from cells in …. …. called …. …. ….
Leukocytes = can in turn differentiate into a variety of different cell types that each have their own function

Answer 2

white blood cells
defend our body from pathogens
bone marrow
hematopoietic stem cells

Question 3

Leukocytes - draw flowchart showing the different types

Answer 3

Leukocytes - Granulocytes, Angranulocytes and Megakaryocytes
1.Granulocytes - Neutrophil, Eosinophil and Basophil
2.Agranulocytes - Lymphocytes and Monocytes
Monocytes = macrophages
Lymphocytes = B-Lymphocytes, T-Lymphocytes and Natural Killer Cells
B-Lymphocytes = Plasma cells & Memory cells
T-lymphocytes = Helper T cells, KIller T cells, Memory T cells, Suppressor cells
3.Megakaryocytes - Platelets

Question 4

Granulocytes
Simply Name 3 types of cells
1 sentence about appearance

Answer 4

Neutrophils, Eosinophils & Basophils
Granulocytes - cells are characterised by the presence of granulocytes in their cytoplasm and their lobe-shaped nuclei

Question 5

Neutrophils, Eosionphils & Basophils - 1 line basic sentence about function

Answer 5

Neutrophils = Phagocytic cells that can seek out & engulf bacterial cells that infect our body
Eosionophils = involved in allergic reactions and parasitic infections
Basophils = contain special chemicals (histamines) that areinvolved in inflammation & also contain an anticlotting agent called heparin

Question 6

Name an anticlotting agent

Answer 6

Heparin

Question 7

Megakaryocytes - recall and read

Answer 7

Mekaryocytes -> platelets
. Pieces of megakaryocytes break off - form structures called platelets (thrombocytes)
Platelets = lack a nucleus
Cut in blood vessel develops = platelets will bind to and cut and aggregate within minutes to form a temporary patch

Question 8

Agranulocytes - recall & read

Answer 8

. Cells lack granules
. Have spherical or kidney shaped nuclei
. Monocytes - enter tissue & develop into macrophages, which are large scavenger cells that engulf pathogens via phagocytosis
. Lymphocytes = cells involved in acquired immune response
. Differentiate into 3 types - natural killer cells, B lymphocytes and T lymphocytes

Question 9

Recall and read lymphocytes subtypes

Answer 9

Natural killer cells - seek out and destroy infected cells and cancer cells
B lymphocytes - cells that are part of the antibody mediated response - B lymphocytes differentiate into plasma cells that produce the antibodies and memory cells that protect the body from reinfection.
T-lymphocytes = part of the cell-mediated response, T lymphocytes differentiate into killer T cells, which recognise foreign antigens and destroy pathogens, Helper T cells which release chemicals and assist maturation of other cells
Memory T cells - protect from reinfection
Suppressor cells - regulate and suppress the immune system