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A substance which speeds up the rate of a chemical reaction without being changed or used up. |
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protein made by living cells that acts as a biological catalyst. |
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type of molecule that enzymes are made of |
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enzyme which catalyses break down of hydrogen peroxide into oxygen and water |
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enzyme which catalyses builds up of glucose-1-phosphate into starch. |
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enzyme which catalyses the breakdown of starch into sugar (maltose) |
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term to describe the ability of an enzyme to act on only ONE type of substrate |
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idea (theory) that an enzyme and substrate molecules fit together because of their complementary shape |
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substance which an enzyme acts on |
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building up large molecules from smaller ones |
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breakdown reaction (digestion) |
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turning large molecules into smaller ones |
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condition at which an enzyme is most active |
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state of an enzyme that has been permanently destroyed by being heated to a temperature of over 50oC |
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chemical process that releases energy from food using oxygen |
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chemical process that releases energy from food without using oxygen |
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fuel food containing energy |
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gas needed for efficient release of energy from food during aerobic respiration |
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waste product of anaerobic respiration in yeast |
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waste product of respiration (GAS) |
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movement of a substance from an area where it is high in concentration to an area where it is low in concentration |
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cell structure that allows only small molecules to cross into or out of the cell |
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glucose, oxygen, carbon dioxide & water |
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molecules small enough to diffuse across the cell membrane |
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molecule too large to pass across the cell membrane |
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thread-like structure carrying the genetic code, found in the nucleus |
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how cells make more copies of themselves for growth and repair |
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disease caused by uncontrolled growth of cells |
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