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Give two ways in which the presence of synapses are advantageous to the nervous system.

They ensure unidirectional transmission - Nerve impulses can also pass from the pre-synaptic neurone to the post-synaptic neurone. This is due to the neurotransmitter being made in the pre-synaptic membra...

Answered by Lucy C. • Biology tutor

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Find ∫ (2x^5 - 1/(4x^3)-5) dx. giving each term in its simplest form.

with integration you need to increase the power and divide through by the new power for each term in the equation.2x⁵ goes to 2x⁶/6 = x⁶/3-1/(4x³) is equal to -...

Answered by Kieran Y. • Maths tutor

5975 Views

Find both stationary points for y= 4x^(3)-3x^(2)-60x+24. Also find the nature of those points.

y= 4x³- 3x²- 60x+ 24dy/dx = 12x²- 6x- 60 = 2x²- x- 10 = (2x-5)(x+2)
So stationary points are at x= 5/2 and x= -2
d²x/dy²= 24...

Answered by Will M. • Maths tutor

6757 Views

“Desire dazzles and destroys.” Compare the presentation of the destructive power of desire in one poetry and one drama text you have studied.

Both Milton, in ‘Paradise Lost’, and Webster, in ‘The Duchess of Malfi’, highlight the destructive nature of desire on those it effects. There are subtle differences in their presentation, with themes suc...

Answered by Gabriella S. • English Literature tutor

10962 Views

Each amino acid contains a different R group specific to the amino acid. Describe how the R group of an amino acid contributes to the tertiary structure of a protein. (4 marks)

Cysteine contains an S atom in its R group. Where 2 molecules of cysteine are found together, strong covalent bonds or "disulfide bridges" can form between the two S atoms (S=S). R...

Answered by Jake G. • Biology tutor

18138 Views