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What is the function of bile?

Bile is a substance synthesised in the liver and released by the gall bladder. It is released into the small intestine and helps breakdown large fat droplets into smaller ones, via emulsification. This incre...
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Answered by Shyam P. • Biology tutor
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Differentiate (3x^2-5x)/(4x^3+2x^2)

We can differentiate the expression using the quotient rule. If f(x)=u(x)/v(x) then f'(x)=(u'(x) v(x)-u(x) v'(x))/v(x)^2. In this case u(x)=3x^2-5x so u'(x)=6x-5 and v(x)=4x^3+2x^2 so v'(x)= 12x^2+4x. Using ...
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Answered by Andras Ivan A. • Maths tutor
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How to best prepare for an unseen poem question on a GCSE English Literature paper?

Firstly, it is important to remember that with this and every English Literature question there is no one right or wrong answer! The study of English is about expressing your own personal thoughts and ideas ...
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God cannot be omnipotent if there is evil in the world. Discuss.

God can be... The central argument in favour of an omnipotent God allowing evil to exist in the world originates from human free will; i.e. our ability to make unrestricted moral/ethical choices throughout o...
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explain how oxygen moves across from the lungs into the blood? how are the lungs adapted for this?

via diffusion down a concentration gradient as O2 levels are higher in the lungs than in the blood. for faster diffusion you need:a large surface area (lungs have million of alveoli which are air filled sacs...
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Answered by Maaedah K. • Biology tutor
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