2.2.3 Componenets Of Blood Flashcards
The four components of blood
White blood cells <1%
Platelets <1%
Ref blood cells 45%
Plasma 55%
Components of blood plasma
Water
Dissolved nutrients
Oxygen
Carbon dioxide
Urea
Hormones
Dissolved mineral ions
Plasma proteins
Function of water in blood plasma
-Solvent to dissolve other substances
-Transport other substances
Dissolved nutrients in blood plasma
Glucose
Amino acids
Fatty acids/glycerol
Vitamins
Use of vitamins in blood plasma
Helps to regulate metabolism inside cells
Use of glucose in blood plasma
Respiration
To make new carbohydrates
Use of amino acids in cells
To make new proteins
Use of fatty acids/glycerol
To make new fats/lipids
Uses of oxygen in blood plasma
Used for aerobic respiration
Uses of carbon dioxide in blood plasma
Waste product
Use urea in blood
Used for the breakdown of excess proteins
Use of hormones in the blood
Involved in homeostasis
Control changes in the body
Uses of dissolved mineral ions in the blood
Control water movement
Regulates metabolism
Use of plasma proteins in the blood
Help blood clot
Help with reabsorption of fluid from tissues to blood
Features of red blood cells under a microscope
Small in size
Numerous
Pink/red in colour
White blood cells featured under a microscope
Larger in size
Fewer in numbers
Nucleus stained for contrast
Where are all the blood components produced
Bone marrow
Function of red blood cell
Bind to oxygen irreversibly
Two types of white blood cells
Phagocytes and lymphocytes
Phagocyte function
Swarm to site of infection
Phagocyte adaptations
They can change shape yor squeeze out capillaries and reach the site of infection
Adapt of red blood cells
No nucleus
Haemoglobin
Bioconcave
Lymphocytes function
Produce antibodies
Lymphocytes adaptations
-Specific to one type of microbe
- Bind to antigens
Platelets function
Stop bacteria entering blood
Stop blood escaping
Platelets function
Stop bacteria entering blood
Stop blood escaping
Platelets adaptations
If exposed to air or collegen in the blood vessel walls, it causes the formation of dense mesh that traps red blood cells