1 3.2.3.h. 2 1.details of red blood cell structure &function 2.details of two types of white...
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1. Details of red blood cell structure &function
2. Details of two types of white blood cells
(a) Lymphocytes
(b) Monocytes
Plasma
Red Blood Cells
White Blood Cells
Platelets
Composed of mainly water which acts as a transport medium for the cells and dissolved substances
Carry Oxygen
Fight Infection
Clotting
Biconcave discs ……gives large surface area
No Nucleus
Flexible Cell membranes
Made in bone marrow of ribs & sternum
Contain Haemoglobin…(has a high affinity for oxygen)
No mitochondria
Two types
Have a Nucleus
1. Lymphocytes
Formed in bone marrow and mature in spleen
2. Monocytes
Protect against disease
No definite shape
Produce antibodies
Engulf microorganisms
Composed of mainly water which as a transport medium for the cells and dissolved substances
Dissolved substances include
Digestion products ….Glucose, amno acids, Fatty acids, glycerol, minerals and vitamins
Waste….Carbon dioxide, urea
Hormones….eg Insulin
Antibodies
1. List four ways, other than colour, in which red blood cells are different from ordinary body cells
2. Name the chemical in red blood cells that has a high affinity for oxygen
3. Name two types of white blood cells and give the function of each type