usually only one, they have a high specificity for their substrate.
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For the enzyme to work, the substrate has to fit into the...
active site of the enzyme.
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What is the 'active site' of an enzyme?
the part where it joins to its substrate to catalyse the reaction.
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Will the reaction be catalysed if the substrate shape doesn't match the active site of the enzyme's shape?
No.
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What is the 'lock and key' mechanism?
Where the substrate fits into the enzyme just like a key.
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How can you measure the rate of an Enzyme-controlled reaction?
An experiment using amylase as the enzyme and starch as the substrate. Using a spotting tile and iodine solution you can see the comparison of reaction rates under different conditions.
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What is the step of protein synthesis called when two DNA strands unzip and is used as a template to make mRNA?
Transcription.
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What is the step of protein synthesis called the ribosome sticks amino acids together to make a polypeptide which follows the triplet of bases (called codons) in the mRNA?
Translation.
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What are codons?
triplets of bases.
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Amino acids that match the mRNA are brought to the ribosome by molecules called...
tRNA
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What is the result of protein synthesis?
each type of portion is make with its own specific number and sequence of amino acids - the ones described by its DNa base sequence. This is what makes it fold up into the right shape to do a specific job.
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Name the 4 bases.
Guanine, Cytosine, Adenine and Thymine.
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Other cards in this set
Card 2
Front
For the enzyme to work, the substrate has to fit into the...
Back
active site of the enzyme.
Card 3
Front
What is the 'active site' of an enzyme?
Back
Card 4
Front
Will the reaction be catalysed if the substrate shape doesn't match the active site of the enzyme's shape?
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