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2643812
BLOOD
Beschreibung
a description of what blood is made out of- red blood cells, plasma, platelets and leukocytes. and information about each one.
Keine Merkmale angegeben
blood
biology
educational
a level
Mindmap von
Sara Goldstein
, aktualisiert more than 1 year ago
Mehr
Weniger
Erstellt von
Sara Goldstein
vor etwa 9 Jahre
40
1
0
Zusammenfassung der Ressource
BLOOD
45% Red Blood Cells
contain haemoglobin, which binds/ carries oxygenated releases it in hypoxic areas.
Haemoglobin contains iron, which makes RBCs red. Anaemia is a serious disease caused by lack of iron
Made in the bone marrow- skull & pelvis
Bioconcave shape to increase high SA
RBCs are stripped of al organelles, including the nucleus, so that they can contain maximum haemoglobin to carry the maximum amount of oxygen.
Flexible to squeeze through tiny capillaries
Transport oxygen from the lungs to all the cells in the body
In the lungs, haemoglobin react with oxygen to become oxyhaemoglobin, In body tissues the reverse happens to release oxygen into the cells.
NO nucleus- frees up space for more haemoglobin, so they can carry more oxygen
49% Plasma
Pale yellow liquid that carries just about everything that needs transporting around the body
Red and white blood cells and platelets
digested food products-glucose, amino acids, sugars, fat, salts, minerals- from the gut to all body cells
Carbon dioxide from body cells to lungs
Urea from the liver to the kidneys
hormons- chemical messengers
Heat energy
antibodies
clotting proteins
High water content
helps maintain body temp.
4% Platelets
when you damage a blood vessel platelets clump together to help form a clot
blood clots stop you losing too much blood and prevent micro-organisms from entering the wound
in clots, platelets are held together by a mesh of protein called fibrin, these tangle up red blood cells to help from a clot
1% White Blood Cells
5 kind of white blood cells- neutrophils, monocytes, lymphocytes, eosinophils and basophils
important for immune system
some can engulf bacteria and other pathogens by phagocytosis. They can change shape easily and produce enzymes that digest the pathogens.
some can secrete antibodies that help destroy pathogens
Medienanhänge
b833d341-6f70-439d-b1b5-6b13c51940e9 (image/jpg)
2ee6eb42-5638-4c59-8b9d-88b5f4633340 (image/jpg)
ff76a345-2dce-4b77-9bc4-58bf79285c9d.gif (image/gif)
7430fd4e-9b02-478d-a7b3-948f54cbfd61.gif (image/gif)
92db5d9e-043b-4506-8a8a-a9a04422ce56 (image/jpg)
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