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Chemistry-Lipids - lipids notes
Chemistry (CHM104)
Rockland Community College
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Chemistry Lipids - Lipids are a diverse group of organic molecules that are insoluble in water but soluble in organic solvents. - They include fats, oils, waxes, phospholipids, and steroids. - Lipids are important for many different functions in the body, such as energy storage, insulation, and cell membrane structure. - Fats and oils are the most common types of lipids. - They are composed of glycerol and fatty acids. The fatty acids are long chains of hydrocarbons with a carboxyl group at one end. - Fats are solid at room temperature, while oils are liquid at room temperature. - The difference in physical properties is due to the types of fatty acids that are present in the molecule. - Waxes are another type of lipid that are composed of long-chain fatty acids and alcohols. - They are found in many different types of organisms, such as plants, animals, and fungi. - Waxes are important for waterproofing and protection. - Phospholipids are a type of lipid that are important for cell membrane structure. - They are composed of glycerol, two fatty acids, and a phosphate group. - The phosphate group is hydrophilic, or water-loving, while the fatty acid chains are hydrophobic, or water-hating. - This allows phospholipids to form a bilayer in cell membranes, with the hydrophilic heads facing outward and the hydrophobic tails facing inward.
- Steroids are another type of lipid that are important for many different functions in the body.
- They include cholesterol, which is important for cell membrane structure, and hormones, such as testosterone and estrogen.
- Steroids are composed of four fused rings of carbon atoms.
- Overall, lipids are an important class of organic molecules that are essential for many different functions in the body.
- They are diverse in structure and function, and they are found in many different types of organisms.
Chemistry-Lipids - lipids notes
Course: Chemistry (CHM104)
University: Rockland Community College
