Biology paper 2- the circulatory system 0.0 / 5 ? BiologyCirculationGCSEEdexcel Created by: amy_claraCreated on: 03-04-18 14:24 all the chemical reactions in your body are known as your ____________________ metabolism 1 of 11 Veins carry blood (towards/ away from) the heart towards 2 of 11 arteries carry blood (towards/ away from) the heart away from 3 of 11 the capillaries are (thick/thin) to allow (slower/ faster) diffusion of substances into and out the (veins / capillaries) thin, faster, capillaries 4 of 11 erythrocytes are __________ (hint:found in blood) red blood cells 5 of 11 name 3 substances found in the blood erythrocytes (red blood cells), white blood cells and platelets 6 of 11 How is a red blood cell adapted to its function? It has NO NUCLEUS so there is more space for the haemoglobin. They are a disk shape (bioconcave) for more oxygen to diffuse in and out easier. 7 of 11 What causes heart attacks to occur? Blood not flowing to muscles in a part of a heart, damaging them and stopping them pumping properly 8 of 11 Blood from most of the body enters the (left/ right) (atrium/ ventricle), through the __________ right atrium, vena carva (a large vein) 9 of 11 The OXYGENATED blood can be found on the (left/ right) side left 10 of 11 What is the word equation for aerobic respiration? Glucose+oxygen---.> carbon dioxide + oxygen 11 of 11
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