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H - U2 - Metabolism
Higher - Unit 2 - Metabolism
Question | Answer |
---|---|
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 |