Abuzar133
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WHAT is the role of bile and how is it excreted into where it is supposed to go
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Fractite
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Bile is alkaline and is produced in the liver, and then stored in the gall bladder.

It's meant to 'neutralise' the stomach acids so that certain enzymes (lipase etc.) can work under the right conditions (if it's too acidic, the enzymes will denature as their bonds break).

It works in the small intestine.
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melisss22
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in the stomach there is HCl which is very acidic, only certain enzymes can work at the pH in the stomach, however other enzymes cannot, the role of bile is to restore the pH level back to 7 or 8 in order for enzymes to work and to break down food into smaller molecules.

bile is stored in the gall bladder and is secreted into the small intestine so enzymes such as maltase and lipase can work without denaturing
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pixiefuller
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Bile is produced by the liver, stored in the gall bladder and released into the small intestine.

It is alkaline so neutralises the hydrochloric acid produced by the stomach and makes the conditions alkaline. The enzymes in the small intestine work best in these alkaline conditions.

Bile also emulsifies fats by breaking them down into tiny droplets. This gives a larger surface area for lipase enzymes to work on, so digestion is faster.
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Its Just That Dude
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I can confirm these are all correct.
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amingo26
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Simple answer I put in my B2 last year (I think it was a 2 marker):

Bile is an alkaline substance made by the liver to neutralise stomach acid.
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_Xenon_
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(Original post by Abuzar133)
WHAT is the role of bile and how is it excreted into where it is supposed to go
see this
http://www.bbc.co.uk/schools/gcsebit...tionrev4.shtml
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