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Why could a single base mutation stop an enzyme from catalysing a reaction?

Because the single base mutation would change the primary structure of the enzyme which in turn would change the secondary structure of the enzyme due to the differences in hydrogen bonds formed. As a result...
Answered by • Biology tutor
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Single electrons travelling at 550 ms^-1 are passed through a diffraction grating with a spacing between the slits of 2.5 micrometers. What would the angle between the zeroth and first maximum of the resulting interference pattern be?

This is a question based loosely around the specification of the OCR A-Level Physics B course, requiring the student to recall two important quantum mechanical relations, first with one from the A2 part of t...
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Answered by Tom H. • Physics tutor
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Solve the equation cosec^2(x) = 1 + 2cot(x), for -180° < x ≤ 180°.

First, we want to convert the equation to a simpler form involving just one function of x. Squared trigonometric functions are normally good candidates for simplification, thanks to the trigonometric identit...
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Answered by Max H. • Maths tutor
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Integrate cos(x)sin^2(x)

Answer: sin^3(x)/3 + c The student can either solve by inspection by noticing that the derivative of sin^3(x)=3sin^2(x)cos(x). OR The student can use the longer method of integration by parts.
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Answered by Milan S. • Maths tutor
10017 Views

0.04 moles of sulfur trioxide is placed in a flask (1.50dm^3) and allowed to reach equilibrium at 600 degrees. If 30% of the sulfur trioxide decomposes to sulfur dioxide and oxygen - what is the equilibrium constant?

The easiest way to start your answer is by writing out the equation for the reaction {2SO 3 (g) &lt;-&gt; 2SO 2 (g) + O 2 (g) } and considering what the equilibrium constant is {K c = [products] / [reactants...
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Answered by Isobel W. • Chemistry tutor
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