A Level Biology Revision "Competitive Inhibitors"

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In this video, we look at the effect of competitive inhibitors on enzymes. First we explore what is meant by a competitive inhibitor. We then look at how competitive inhibitors reduce the rate of enzymes. Finally, we explore how the effect of competitive inhibitors can be overcome by increasing the concentration of the substrate.
This video is aimed at the UK A Level Biology specifications. Students studying International A Level Biology will need to check their specification.

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[@fasihmajid1643]

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[@Ayyan-e6x]

do we need to remember methotrexate and penicillin specifically and what they do?

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[@MH-yt7vm]

@freesciencelessons At 4:10, what did you mean when you said that "methotrexate is a reversible competitive inhibitor of an enzyme found in human cells?"

[@Freesciencelessons]

It attaches to the active site temporarily and blocks the substrate from binding.

[@MH-yt7vm]

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First