Digestion and absorption by osmosis
Digestion
The small intestine. It has villi that absorb nutrients and then transport them to the bloodstream.
Nutrients enter the extracellular fluid primarily through the process of digestion in the gastrointestinal tract, where they are broken down and absorbed into the bloodstream. Once in the bloodstream, nutrients are transported to cells where they can diffuse into the extracellular fluid for use by surrounding tissues. Overall, nutrient uptake into the extracellular fluid is a complex process involving digestion, absorption, and circulation throughout the body.
Vitamins that are water- soluble directly enter the bloodstream. Examples of these vitamins are B vitamins, biotin, pantothenic acid, folate and vitamin C.
After nutrients are digested in the small intestine, they are absorbed into the bloodstream through the walls of the small intestine. This process is facilitated by tiny blood vessels called capillaries and specialized cells that line the intestine, allowing the nutrients to be transported to different parts of the body for energy and growth.
active transport
Nutrients are absorbed into the bloodstream through the lining of the small intestine. This process involves breaking down food into smaller molecules, which are then transported across the intestinal wall and into the bloodstream for distribution to the rest of the body.
Absorption is the process by which nutrients are moved into lymph and blood.
Nutrients leave the gut and enter the bloodstream through the lining of the small intestine.
Nutrients are absorbed into the bloodstream primarily in the small intestine.
It reabsorbs water and soluble nutrients into the bloodstream, leaving faeces.
Nutrients are transported to cells via the bloodstream through a process facilitated by the circulatory system. After digestion, nutrients like glucose, amino acids, and fatty acids enter the bloodstream from the intestines and are carried to cells throughout the body. The heart pumps this nutrient-rich blood, allowing cells to absorb the necessary substances for energy, growth, and repair. Additionally, hormones and other regulatory factors assist in the uptake and utilization of these nutrients by the cells.