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How can additional molecules or ions increase the activity of an enzyme?

Molecules or ions which improve the activity of an enzyme are classified as cofactors, coenzymes, or prosthetic groups. Cofactors are often ions, and coenzymes and prosthetic groups are larger molecules. Cof...
MS
Answered by Melody S. • Biology tutor
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Simplify the expression: (x^2 + x - 6)/(3x^2 + 9x)

Factorise the numerator: x^2 + x - 6 = (x+3)(x-2) Factorise the denominator: 3x^2 + 9x = 3x(x+3) Cancel '(x+3)' Answer: (x-2)/3x
RD
Answered by Richard D. • Maths tutor
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By 1547 to what extent can Henry VIII's religious settlement be considered 'Catholicism without the Pope'?

It can be argued that to a large extent, by 1540 that the religious society in England can be considered Catholicism without the Pope. Initially when the reformation began Henry pushed for a very protestant ...
AS
Answered by Alice S. • History tutor
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Prove ∑r^3 = 1/4 n^2(n+1)^2

Proof by induction Base Case when n=1 LHS = 1^3=1 RHS= 1/4(1^2)(1+1)^2=1/4(1)(2^2)=1/4(4) Assume true for n=k so ∑r^3= 1/4k^2(k+1)^2 For n=k+1 ∑r^3 = ∑k terms + (k+1)^3 = 1/4(k^2)(k+1)^2 + (k+1)^3 = 1/4(k^2)...
JO
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sin(x)/(cos(x)+1) + cos(x)/(sin(x)+1) = 1

sin^2(x) + sin(x) + cos^2(x) + cos(x) = cos(x)sin(x) + cos(x) + sin(x) +1 (sin^2(x) + cos^2(x) =1) Therefore; 1 +sin(x) + cos(x) = cos(x)sin(x) + sin(x) +cos(x) +1 Cancelling out on both sides cos(x)sin(x) =...
JO
Answered by James O. • Maths tutor
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