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Describe the structure of proteins in terms of Primary, Secondary, Tertiary and Quaternary structures

The primary structure comprises of the original sequence of amino acids resulting in a polymer of amino acids. These are joined to adjacent amino acids through by peptide bonds, formed by condensation rea...

Answered by Kashif Q. • Biology tutor

3789 Views

What are the differences between mitosis and meiosis?

Both are forms of cell division Mitosis"Normal" cell division- how cells increase in number 1 "parent" cell produces 2 "daughter" cells All the cells involved are gene...

Answered by Amy B. • Biology tutor

2108 Views

It takes 4200 Joules to heat up 1 kg of water by 1 C^o. If you have a kettle with a power of 2500 Watts, how long will it takes to boil 0.8 kg of water from an initial temperature of 25 C^o to the nearest second??

Energy required calculated using the equation for specific heat capacity: mcdT = dE where m is mass, c is specific heat capacity and dT is the change in temperature.
Time taken is calculated...

Answered by Benjamin C. • Physics tutor

5788 Views

For the equation x^2 - 2x - 8 = y find: (a) The roots. (b) The y-intercept. (c) The coordinate of the turning point

(a) Several methods to do this, simplest would be to factorise the quadratic into (x - 4)(x + 2) = 0 and from here see that root occur at x = 4 and x = -2.(b) Substitute x = 0 into the equation 0^2 - 2

Answered by Benjamin C. • Maths tutor

4092 Views

How can I make the cadence of my Bach chorale more sophisticated?

Let's start with a simple harmonisation of the end of a soprano melody - see figure 1 on the whiteboard. The melody is A B B C and the respective chords I have chosen are IV V V I. We therefore currently ...

Answered by Eleanor H. • Music tutor

3351 Views