-Lipids are any group of organic compounds that are greasy to the touch, insoluble in water, The most abundant lipids are fats.-Like carbohydrates, lipids are composed of carbon, hydrogen, and oxygen atoms.The building blocks of fat are fatty acids and Glycerol.-There are many types of fatty acids, which means there are many kinds of fats-The glycerol portion of each fat molecule is the same.
Topic of the day:Lipids & Fat molecules
Saturated fatty acid: each carbon binds as many hydrogen atoms as many hydrogen atoms as possible and this is saturated with themUnsaturated fatty acid: have one or more double bonds between carbon atoms.
-A glycerol molecule combines with three fatty acid molecules to form a single fat molecule-Fat molecules have only saturated fatty acids called saturated fats-Those that have unsaturated fatty acids are called unsaturated fats
These are some yummy examples of proteins
What are proteins?
The human body has more than 200,000 types of proteins
Proteins have a variety of different functions
Antibody proteins: recognize and destroy substances foreign to the body
Hemoglobin and myoglobin are proteins that carry oxygen in the blood and muscles
Proteins contain nitrogen and are composed of many bonded amino acid molecules
Contractile proteins such as actin and myosin provide muscle action