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H - U2 - Metabolism

Higher - Unit 2 - Metabolism

QuestionAnswer
Define Metabolism All the reactions that occur within a cell.
What are metabolic pathways? Integrated and controlled pathways of enzyme-catalysed reactions within a cell.
What are the three steps involved in metabolic pathways? Reversible, irreversible and alternative route
Which step is represented by two arrows going in opposite directions? Reversible
Which step is represented by an arrow that jumps a number of steps in the metabolic pathway? Alternative route
Which step is represented by one arrow? Irreversible
Which protein controls metabolic pathways? Enzymes
What is a catabolic reaction? A reaction that breaks down large molecules into small molecules.
What is an anabolic reaction? A reaction that builds up large molecules from smaller molecules.
Which reaction releases energy? Catabolic
Which reaction requires energy? Anabolic
'Proteins are broken down into Amino Acids' which reaction is this an example of? Catabolic
"Glucose-1-phosphate molecules are built up into starch' which reaction is this an example of? Anabolic
'fatty acids and glycerol are made when fats are broken down' which reaction is this an example of? Catabolic
'The enzyme amylase breaks down starch into maltose' which reaction is this an example of? Catabolic
Created by: StNiniansHS
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