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What is the difference between the two main schools of thought on enzyme function?

The first of the two major theories are Lock and Key mechanism, which describes the perfect design of the enzyme active site to that of its substrate so that they can immediately interact on contact without ...
JC
Answered by Jonathan C. • Biology tutor
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How does heart muscle contract rhythmically in unison?

The heart is composed of a specialied muscle type called cardiac muscle. This has unique properties such that each muscle cell is connected together by gap junctions in their cell membranes (electrical synap...
JC
Answered by Jonathan C. • Biology tutor
6454 Views

Integrate x*ln(x)

Let u = ln(x) and dv/dx = x Thus du/dx = 1/x and v = x 2 /2 Using the formula: Integral of u dv/dx = u v - Integral of v*du/dx This becomes: Integral of x*ln(x) = (x 2 ln(x))/2 - Integral of x/2 Completing t...
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Answered by Anindita G. • Maths tutor
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A projectile is fired out of a cannon at 50 km/s, at an angle of 30 degrees and an elevation of 10m from the ground. How long does it take for the projectile to hit the ground?

Find the verticle velocity by resolving the velocity vector: Trigonometry: 50sin30 = 25m/s in upwards direction Using SUVAT for the vertical direction: S=-10, U=25, A=-9.81, V=N/A, T=?: s=ut+0.5at 2 In the u...
LC
Answered by Lewis C. • Physics tutor
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What is the % yield if 12g of magnesium is dissolved in hydrochloric acid to produce 20g of magnesium chloride?

First we need to write the balanced equation for the reaction. In this case it is Mg + 2HCl -> MgCl 2 + H 2 . Now we need to work out the maximum theoretical yield of MgCl 2 from 12g of Mg. 12g of Mg is 0...
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Answered by Holly W. • Chemistry tutor
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