Cells, tissues and organs (KEYWORDS ONLY) 0.0 / 5 ? BiologyCells, tissues and organsGCSEAQA Created by: WArmesCreated on: 18-07-17 14:49 A biological molecule that speeds up a chemical reaction. Enzyme 1 of 21 Cannot dissolve. Insoluble 2 of 21 Can dissolve. Soluble 3 of 21 A ring of muscle that can open or close a tube. Sphincter 4 of 21 A disease-causing microorganism (eg a bacterium or fungus). Pathogen 5 of 21 A green-coloured liquid produced by your liver, stored by your gall bladder and released into your small intestine to help break down fats. Bile 6 of 21 Fats or oils, which are insoluble in water. Lipids 7 of 21 Removing solid waste from the body. Defecation 8 of 21 The molecule or molecules on which an enzyme acts. Substrate 9 of 21 The substance or substances produced by an enzyme reaction. Product 10 of 21 A model that explains the action of enzymes. Lock and key hypothesis 11 of 21 The region of an enzyme that binds to its substrate. Active site 12 of 21 A permanent change to an enzyme as a result of extremes of pH of high temperature, which stop it working. Denatured 13 of 21 A large blood vessel that takes blood from the heart. Artery 14 of 21 A large blood vessel that returns blood to the heart. Vein 15 of 21 Blood vessel that joins arteries and veins. Substances pass through capillary walls to and from the surrounding cells. Capillary 16 of 21 An upper chamber of the heart surrounded by a thin wall of muscle. Atrium 17 of 21 A lower chamber of the heart surrounded by a thicker wall or muscle. Ventricle 18 of 21 Without oxygen. Deoxygenated 19 of 21 The straw-coloured liquid that carries our blood cells and dissolved molecules. Blood plasma 20 of 21 The protein in red blood cells that can temporarily bind with oxygen to carry it around the body. Haemoglobin 21 of 21
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