Cellular Components Of Blood Flashcards
Name of WBC
leukocyte
Name of platelets
Thrombocytes
Where are RBCs 1) produced 2) shape 3) carry what gases 4) oxygen is carried on what molecule 5) production controlled by what hormone 6) where is this hormone produced
1) red bone marrow 2) bi concave disc shape 3) Oxygen and Carbon Dioxide 4) haemoglobin 5) erythropoietin 6) kidneys
Haemoglobin is composed of what
4 protein sub units, each containing an iron centre (heme)
Each heme centre carries how many molecules of oxygen?
1
WBCs make up how much % of whole blood
1
WBCs are 1) shape 2) nucleus type 3) functions
1) circular or ameboid 2) circular or multi lobed nucleus 3) protect body against infection and assist in recycling cellular debris
Name 2 groups of WBCs
Granular and Agranular
Specialised lysosomes are what and found in which WBCs
Granules and are found in granular WBCs
Specialised lysosomes contain what and what is the purpose of this
Contains enzymes and other compounds designed to destroy bacteria
Name 2 specific examples of what granules could contain
Digestive enzymes and antibiotic proteins called defensins
Name the 3 types of granular leukocytes and the colour stain related to them
Acidophils/Eosinophils = Acidic dye = Red Basophils = Basic = Blue Neutrophils = neutral = purple
What are the majority of granular leukocytes in the blood found
Neutrophils
What granular leukocytes is important for protecting the body against parasites and so increases when there is an infection
Eosinophils/Acidophils
Granular leukocytes have a multi lobed nucleus and the lobes appear to be separated but what are they joined by
By a thin thread of chromatin
Neutrophils may contain 3-6 lobes and so could be called what
Polymorphonuclear leukocytes
What feature of granular leukocytes allows them to have the ability to engulf and digest bacteria
They are phagocytic
Name the 2 types of Agranular leukocyte
Monocytes and lymphocytes
Monocytes are primarily what
Phagocytic cells
What other feature do monocytes have
Break down bacteria and other ingested material which can be recognised by the immune system
What shape are monocyte nucleus
U shaped
Where else can lymphocytes be found
Lymphoid tissue
Describe the type of nucleus a Lymphocyte has and what the outer rim is
Large spherical nucleus and has a thin outer rim of cytoplasm.
Name two groups of lymphocytes
T cells and B cells
T cells are 1) matured where? 2) attack what
1) matured in thymus gland 2) attack infected or cancerous cells
B cells 1) produce what 2) mature where
1) produce antibodies 2) red bone marrow
What is chemotaxis
Ability to sense and migrate towards chemical signals released by bacteria and damaged tissues
What are platelets and where have they come from
Plasma membrane, cytoplasm and no nucleus. They have budded off from a bone marrow cell megakaryocyte
What hormone stimulates bone marrow production of platelets and where is this hormone produced
Thrombopoietin (TPO) produced by the liver
Platelets contain a special assortment of proteins and other molecules for what
To enable them to stick together and assist in clot formation and tissue repair
Platelets last how long if they do not become involved in blood clotting
10 days
Name of RBC
Erythrocytes
Leukocyte movement is what in nature (cell crawls rather than swims)
amoeboid
Platelets contain what ion for growth factor
Ca2+, serotonin
