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Effect of pH on enzyme catalysed reaction

At optimum pH, active site is complimentary to substratepH changes disrupt H-bonds/ ionic bonds
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Answered by Kelvin C. • Biology tutor
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Effect of temperature on enzyme catalysed reaction

Increasing temperature increases KE of molecules1. so more enzyme-substrate (E-S) collisions1. more E-S complexes formed2. Hydrogen/ ionic bonds broken2. Enzyme becomes denatured2. Active site changes shape,...
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Answered by Kelvin C. • Biology tutor
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Explain and contrast the differences between plant and animal cells.

Taken from AQA specification learning outcome 4.1.1.2Students should be able to explain how the main sub-cellular structures, including the nucleus, cell membranes, mitochondria, chloroplasts in plant cells ...
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Answered by Gabby K. • Biology tutor
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Explain how the chromosome number is halved during meiosis.

Meiosis is formed of meiosis I and meiosis II. You start with a diploid cell (2n). The DNA is replicated in this diploid cell and recombination occurs, where the two chromosomes may swap over bits of DNA.Mei...
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Answered by Susannah W. • Biology tutor
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What is the induced-fit model of enzyme action

Enzyme has an active site that is not quite complementary to substrateActive site changes shape when substrate binds It becomes complementary to substrate
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Answered by Kelvin C. • Biology tutor
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