Blood Flashcards
Composition of blood
Plasma, red, blood cells, white, blood cells, platelets
Function of plasma
Mainly composed of water and acts as transport medium for cells and dissolved substances
Function of White blood cells
Fight infection
Function of Red blood cells
Carry oxygen
function of platelets
Clotting
what is another name for red blood cells?
Red blood corpuscles/erythrocytes
what is another name for white blood cells?
Leucocytes
dissolved substances in plasma
digestion products (i.e. glucose, amino acids, fatty acids, glycerol, minerals, vitamins)
Waste (i.e. carbon dioxide, urea)
Hormones (e.g. insulin)
Antibodies
Antibodies
Proteins produced by white blood cell in response to an antigen
antigen
Find molecules that stimulate the production of antibodies (e.g. bacteria, fungi, virus)
Red blood cell characteristics
no nucleus and mitochondria
Formed in bone marrow of ribs and sternum
Biconcave discs
Contain haemoglobin
Flexible cell membranes
Broken down in liver/spleen
Live for four months
biconcave discs
Gives a large surface area
Haemoglobin
High affinity for oxygen
White blood cell characteristics
have nucleus
Formed in bone marrow and matured in spleen
no definite shape
Protect against disease
Types of white blood cells
Lymphocytes and monocytes
