functions of blood- transport
- Created by: Chantelle..
- Created on: 24-05-18 14:00
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- Functions of blood (transport)
- transport elements required for life around the body
- many transported from digestive system to tissues or storage areas
- e.g. liver
- many transported from digestive system to tissues or storage areas
- Those that cannot be dissolved in water e.g fats
- Carried by blood proteins called lipoproteins
- two main forms of lipoproteins
- high density lipoprotein (HDL)
- prevents or reverses harmful deposits
- low density lipoprotein (LDP)
- deposits fat and cholesterol to walls of arteries
- Transport fat to tissues for energy
- high density lipoprotein (HDL)
- transports oxygen and carbon dioxide between tissues and lungs
- red blood cells contain haemoglobin
- Haemoglobin: iron-containing protein
- red blood cells contain haemoglobin
- haemoglobin + oxygen = oxyhaemoglobin
- erythrocytes have no cell nucleus
- more space for haemoglobin
- disc shape
- helps exchange oxygen
- transports hormones
- e.g. adrenaline
- travel in the blood to target organs where needed
- transport elements required for life around the body
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