The small Intestines :D
The process in which food containing large, insoluble molecules is broken down in to small, water soluble molecules (which can be absorbed by the body) is called digestion.
Food must be chemically digested because the substances which our body needs cannot be absorbed into the blood until they have been broken down into small, soluble chemicals with the help of enzymes in our mouth. When the food is digested, its molecules are small enough to pass through the wall of the small intestine by diffusion.
chemical digestion
yes of course your blood is partially made of small soluble molecules but im guessing that you're talking about nephrons in the kidneys and that small partially permeable membrane, in that case the answer is also "yes of course".
The process of changing food into a soluble form that can be absorbed by the body is called digestion. This involves breaking down food into smaller molecules through mechanical and chemical processes in the digestive system, allowing nutrients to be absorbed into the bloodstream.
Food molecules are primarily absorbed into the bloodstream in the small intestine. The inner lining of the small intestine is covered in finger-like projections called villi, which increase the surface area available for absorption. Nutrients from food pass through the walls of the small intestine and into the bloodstream, where they are transported to cells throughout the body.
So that large, insoluble molecules of food can be broken down into smaller, soluble ones which can then be absorbed into the bloodstream for use by all the cells in the body.
Because the digestive system contains the intestines which pass the food to the kidneys so that they can excrete
Water is absorbed into the blood through a process called osmosis in the small intestine. The water molecules pass through the walls of the small intestine and into the bloodstream, where they are then circulated throughout the body.
Sugar is primarily absorbed in the small intestine of the body.
Proteins are absorbed primarily as amino acids. These acids are water soluble and easily absorbed by the body via active transport.
Yes, magnesium supplements are water soluble, which means they can dissolve in water and be easily absorbed by the body.