Top answers

What is the Biuret test? How do I interpret the results?

The Biuret test is a test for protein, which detects for the presence of protein bonds. In the test, Biuret reagent (sodium hydroxide, hydrated copper (II) suphate and sodium tartrate) is added to the liquid...
RP
Answered by Rebecca P. • Biology tutor
22940 Views

What should I include in my personal statement?

A personal statement needs to be unique and memorable but also show your passion for the subject. For medicine, you need to show you're a caring person and give specific examples of this, which is why work e...
RP
1853 Views

What is the gradient of the curve 3x^3 + 7x at the point x=3?

The gradient or the slope of a curve is defined as the change in the y direction over the change in the x direction (dy/dx). In order to calculate a formula for the gradient of a curve we must differentiate ...
JK
Answered by Junaid K. • Maths tutor
3683 Views

Find the values of k for which the equation (2k-3)x^2- kx+(k-1)=0 has equal roots.

For a quadratic to have equal roots, the value of the discriminant (b 2 -4ac) =0. This means that the quadratic formula yields only one result (or two equal roots), since x=(-b ±0)/2a , thus if a and b are c...
HK
Answered by Henry K. • Maths tutor
12686 Views

Explain what occurs at a conservative plate boundary and provide an example.

A Conservative plate boundary is where two crustal plates slide past each other, and the movement of the plates is parallel to the plate margin. The plates move with relative horizontal movement which is eit...
RP
Answered by Rachel P. • Geography tutor
32824 Views