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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 membrane ...
LC
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.2x 5 goes to 2x 6 /6 = x 6 /3-1/(4x 3 ) is equal to -x -3 /4 which then goes to -x -2 /4/-2 =...
KY
Answered by Kieran Y. • Maths tutor
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Find both stationary points for y= 4x^(3)-3x^(2)-60x+24. Also find the nature of those points.

y= 4x 3 - 3x 2 - 60x+ 24dy/dx = 12x 2 - 6x- 60 = 2x 2 - x- 10 = (2x-5)(x+2) So stationary points are at x= 5/2 and x= -2 d 2 x/dy 2 = 24x - 6 24(5/2) - 6 = positive so this is a minimum point 24(-2) - 6 = ne...
WM
Answered by Will M. • Maths tutor
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“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 such a...
GS
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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 groups may have ...
JG
Answered by Jake G. • Biology tutor
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