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Bile pigment bilirubin a waste product of the breakdown of erythrocytes, is altered by microbes in the large intestine, resulting in urobilinogen, this is then converted to STERCOBILIN which is responsible for the brown colour and deodorisation of faeces.
The brown coloration of faeces comes from a combination of bile and bilirubin, which comes from dead red blood cells.

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12y ago
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10y ago

poop brown coloration comes from a combination of bile and bilirubin, which comes from dead red blood cells the smell of poop is due to bacterial action. Gut flora produce compounds such as indole, skatole, and thiols (sulfur-containing compounds), as well as the inorganic gas hydrogen sulfide. These are the same compounds that are responsible for the odor of flatulence. Consumption of foods with spices may result in the spices being undigested and adding to the smell of poop The perceived bad smell of poop has been hypothesized to be a deterrent for humans, as consumption or touching it may result in sickness or infection. Of course, human perception of the smell is a subjective matter; an animal that eats poop may be attracted to its smell.

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15y ago

it is because the color of bile in your body is brown and so if theres left over your waste gets it

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Q: Why are faeces brown?
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Why does nilum smell of poo?

Because she bathes in faeces and is brown.


Why is bird feces white?

They don't urinate. So all the urea (which would normally be in urine) is passed out at the same time as their faeces. Urea is white and their faeces is brown, which is why when you look at it, their droppings are white and brown.


What function gives feces its brown color?

The breakdown of erythrocytes is the function, but it is the waste product of this function, bile pigment bilirubin which is altered by microbes in the large intestine, resultant urobilinogen, which is converted to STERCOBILIN and excreted in the faeces. It is therefore the by product of this function, STERCOBILIN which deodorises and gives faeces its brown colour.


Why is peoples feces brown?

Faeces is brown because food is broken down in your intestines and mixed with other materials like toxins, dead body tissue and bacteria.


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What is the name of the brown thing that comes out of the large intestine as waste?

technically nothing is released from the large intestine in fact the large intestine leads to the rectum and then to the anus, that is where the faeces (poo and that brown waste that comes out) are egested.


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No. faeces only glows if you put phosphorus in the faeces


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Do reptiles urinate and secrete feces?

Yes they do ! Faeces is excreted as a dark-brown solid 'lump' - Uric acid is excreted as a semi-solid white lump, which dries hard.