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Why are weak acids better absorbed in the small intestine than the stomach despite their high degree of ionization?
There pH at the surface of the intestinal mucosa is around 5.3. This is lower than the bulk pH in the small intestine's lumen. Also, the large mucosal surface area provides a large area for absorption in the small intestine. This large surface area compensates for the low degree of unionization for weakly acidic drugs. When the nonionized form of the drug is removed, more cationic and anionic species will combine to yield the nonionized form so a certain concentration of the nonionized drug will always be maintained until the end of the absorption process.
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Where is ethanol absorbed?
Ethanol is primarily absorbed in the small intestine, but it can also be absorbed in the stomach. Absorption occurs through passive diffusion directly into the bloodstream, leading to its distribution throughout the body.
Are water and salts taken from wastes from the stomach?
Water and salts are taken from foods and drinkable water.
Where does digestive enzymes work?
Digestive enzymes work primarily in the gastrointestinal tract, where they help break down large food molecules into smaller components that can be absorbed by the body. These enzymes are produced by various organs, such as the salivary glands, stomach, pancreas, and small intestine, to aid in the digestion and absorption of nutrients.
What percent of alcohol is absorbed into the bloodstream?
all of it. your gonna die if you keep drinking excessively. do you want to die ? i dont think so. so STOP DRINKING your freaks
What organ is involved with the deamination of amino acids?
Through researching this question i have found out that the stomach absorbs proteins which are made up of amino acids. After the stomach amino acids are then absorbed by the duodenum ( a buffer for acids in the stomach in small intestine, called sodium bicarbonate).
Is aspirin absorbed in the stomach or intestines?
Aspirin is absorbed both in the stomach and the small intestine , for the former the cause lies beyond the fact that the gastric PH (1.5-2.5) is lower than the pka of aspirin (3.5) such that the ionization of aspirin is so much limited and the unionized and subsequently the lipophilicity of aspirin increases so that it's easily absorbed into the gastric mucosal cells. for the latter , aspirin absorption is due to the large absorptive surface area of the small intestine despite the fact that the intestinal PH is higher than the pka of aspirin , but still the surface area help absorption of the unionized fraction of aspirin.
During digestion where is water absorbed?
Large Intestine
Where is Ibuprofen absorbed in the stomach or intestine?
Ibuprofen is mostly absorbed in the duodenum (small intestine). It cannot be absorbed through the lining of the stomach due to its low solubility in water and the low pH of stomach acid (since ibuprofen dissolves in water better at higher pH's).
What a long folded tube inside the body attached to the stomach where nutrients in the food are absorbed?
Small intestine is where 90% of nutrients are absorbed.
Where in the digesitve system is absorption?
alcohol and aspirin are absorbed in the stomach, everything else is absorbed in the small intestine and excess water and vitamins k and b are absorbed in the large intestine.
Organ were digested food is absorbed?
Food is broken down or digested in the stomach but the nutrients are not absorbed in the stomach. Nutrients from digested food are primarily absorbed in the small intestine.
What happen when enzymes from the stomach enters the small intestine?
food will be absorbed
Where is alcohol absorbed?
When you take a drink, about 20 percent of the alcohol is absorbed in your stomach; the remaining 80 percent is absorbed in your small intestine.
Where is most of your food digested?
Most of the digestion of food occurs in the small intestine. This is where enzymes break down proteins, carbohydrates, and fats into smaller molecules that can be absorbed by the body. The small intestine is also where nutrients are absorbed into the bloodstream.
What is the folded tube inside the body attached to the stomach where nutrients in the food are absorbed.?
Small intestine is where 90% of nutrients are absorbed.
What is the long tube inside the body attached to the stomach where nutrients in the food are absorbed?
Small intestine is where 90% of nutrients are absorbed.
Where does food travel to after the mouth?
After the mouth, food travels down the esophagus to the stomach. From there, it moves to the small intestine where nutrients are absorbed, and then to the large intestine where water is absorbed before waste is excreted.
