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Why do organs need to be 'matched'?

The antigens present on the cell surface membranes of organs are different from person to person due to genetic variation (leading to protein tertiary structure variation - remember antigens are proteins ...

FE
Answered by Frances E. Biology tutor
2561 Views

Differentiate the function y=4sqrt(x)

Can re-write function as y=4x1/2Then follow the standard steps for differentiating a power. Take the 1/2 down and multiply by the number in front of the x, in this case 4, to give 2. Now reduce...

CW
Answered by Calum W. Maths tutor
3452 Views

What is the gradient of the curve y = 2x^3 at the point (2,2)?

Firstky differentiate to gain an equation for the gradient.Differentiating gives:dy/dx = 6x2Insert x = 2 into the above equation to find the gradient at that particular point of the curve.When ...

ER
Answered by Emily R. Maths tutor
8235 Views

Show that the curve y =f(x) has exactly two turning points, where f(x)= x^3 - 3x^2 - 24x - 28

This question is about turning points of a curve, these occur when the gradient of a line is zero. In its current form, the equation of the curve tells us nothing about the gradient of the curve; it must ...

JA
Answered by Joshua A. Maths tutor
5380 Views

Whats the effective resistance in a parallel and series circuit with a cell and two 12 ohms resistors ?

What do we know about parallel circuits- Total current is equal to sum of the current in the individual branches IT = I1

SS
Answered by Suwanja S. Physics tutor
3341 Views

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