how do lipids move through the body so they can be digested and absorbed? I fyou pour oil and water together they do not mix so am confused to this. also how are they stored in the body?
Fat is stored in adipose tissue.
Majority of the lipid in the body is in the form of triglycerides (TG). Chilomicrons (licoprotein) contains an interior of triglicerides and cholesterol surrounded by phospholipids. Since the phospholipid tails point inward and the whole structure is surrounded by protein, (hydrophilic[water loving]) while the interior is filled with hydrophobic(water fearing) molecules this allows lipids to travel through the blood (mostly water).
man even more confused but thanks i will look up some of this you speak about maybe that will help me
okay, I wanted it to not be confusing but you wanted the "how" of things so it's just how complicated it is.
Your welcome =D
make me smile
Lipids, such as fats and oils, have a unique way of moving through the body to be digested and absorbed. To understand this process, it helps to know that lipids are hydrophobic, which means they do not dissolve in water. This is why oil and water do not mix when you pour them together.
When you consume dietary lipids, such as fats from food, they are initially broken down into smaller droplets in the process of digestion by enzymes called lipases in the presence of bile salts. Bile salts, produced by the liver and stored in the gallbladder, act as emulsifiers. They surround the lipid droplets and break them down into smaller droplets, which increases their surface area and allows enzymes to work on them more effectively.
Once the lipids are emulsified, they can be further broken down into fatty acids and monoglycerides by the action of lipases. This occurs primarily in the small intestine. These smaller components can then be absorbed by the cells lining the small intestine.
To facilitate the absorption of lipids, the cells lining the small intestine have specialized structures called microvilli, which increase their surface area. The fatty acids and monoglycerides are taken up by the cells and reassembled into triglycerides, the primary form of storage of dietary lipids.
Within the cells, the triglycerides are combined with proteins to form structures called chylomicrons. Chylomicrons are large particles that transport lipids throughout the body. They are released from the cells into the lymphatic system, and eventually enter the bloodstream.
In the bloodstream, lipids are transported by chylomicrons to various tissues and organs in the body. These lipids can be used for energy production, stored in adipose tissues, or incorporated into cell membranes. Adipose tissues, commonly known as fat cells, serve as the primary storage sites for excess dietary lipids. When energy is needed, stored triglycerides can be broken down and utilized.
So, even though lipids and water do not mix, the body has evolved complex mechanisms to ensure that lipids are effectively digested, absorbed, and transported throughout the body for various functions.