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Organisation - Coggle Diagram
Organisation
Heart
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Blood vessels
Vein - blood vessels that carry oxygen-poor blood to your heart. Pulmonary veins are an exception because they carry oxygen-rich blood from your lungs to your heart. They have a thin wall with a large lumen has valves to prevent low pressure blood backflowing
Artery - blood vessels that carry oxygen-rich blood away from your heart. Pulmonary artery's are an exception because they carry oxygen-poor blood from your heart to your lungs. They have a large elastic muscle and elastic layer to stretch and recoil while carrying high pressure blood
Capillary - delicate blood vessels that exist throughout your body. They transport blood, nutrients and oxygen to cells in your organs and body systems. Capillaries are the smallest blood vessels in your vascular system (only 1 cell thick).
The blood
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white blood cells fights of pathogens through phagocytosis, producing antitoxins and antibodies and ect
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Digestive system
Digestive system
The breakdown of large insoluble molecules into smaller soluble molecules that can be absorbed into the blood
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Req practicals
food test
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test for sugar use benedict's and it will turn yellow, green or brick red
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Enzymes
enzymes are proteins, their job is to speed up digestion (catalyst.) they have an active site with high specificity which binds to substrate (food molecule)
types
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Amylase breaks down carbs into glucose (present in saliva, pancreas and small intestine)
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