EDIT: Ok... hope this will do, can't do it any simpler.... use the info that you need or discard it. Take care
Technically speaking, a carbohydrate is a compound made up of carbon, hydrogen, and oxygen. The most basic carbohydrates are called simple sugars and include honey, jams, jellies, syrup, table sugar, candies, soft drinks, fruits, and fruit juices.
Glucose (also called dextrose) is a common simple sugar found in fruits, honey, and vegetables. It is also the substance measured in blood. (In other words, blood sugar equals blood glucose.)
They are relatively small compounds. When several of these simple sugars are linked together, they form more complicated molecules known as complex carbohydrates.
Complex carbohydrates that come from plants are called starch and are found in quality foods such as grains, vegetables, breads, seeds, legumes, and beans. Whether it's a handful of jelly beans or freshly sliced whole grain bread, it's all carbohydrate!
What is a protein?
Many foods contain protein, but the best sources are beef, poultry, fish, eggs, dairy products, nuts, seeds, and legumes like black beans and lentils. Protein builds up, maintains, and replaces the tissues in your body. We mean the stuff your body's made up of. Your muscles, your organs, and your immune system are made up mostly of protein.
Your body uses the protein you eat to make lots of specialized protein molecules that have specific jobs. For instance, your body uses protein to make hemoglobin , the part of red blood cells that carries oxygen to every part of your body. Other proteins are used to build cardiac muscle. What's that? Your heart! In fact, whether you're running or just hanging out, protein is doing important work like moving your legs, moving your lungs, and protecting you from disease
Proteins are sometimes described as long necklaces with differently shaped beads. Each bead is a small amino acid. These amino acids can join together to make thousands of different proteins. Scientists have found many different amino acids in protein, but 22 of them are very important to human health.
Different Kinds of Protein
Protein from animal sources, such as meat and milk, is called complete, because it contains all nine of the essential amino acids. Most vegetable protein is considered incomplete because it lacks one or more of the essential amino acids. This can be a concern for someone who doesn't eat meat or milk products. But people who eat a vegetarian diet can still get all their essential amino acids by eating a wide variety of protein-rich vegetable foods.
For instance, you can't get all the amino acids you need from peanuts alone, but if you have peanut butter on whole-grain bread you're set. Likewise, red beans won't give you everything you need, but red beans and rice will do the trick. The good news is that you don't have to eat all the essential amino acids in every meal. As long as you have a variety of protein sources throughout the day, your body will grab what it needs from each meal.
What is a lipid?
Lipids contain a lot of calories in a small space. Since Lipids are generally insoluble in polar substances such as water, they are stored in special ways in you body's cells. Lipids can also function as structural components in the cell. Phospholipids are the major building blocks of cell membranes. Lipids are also used as hormones that play roles in regulating our metabolism. Most lipids are composed of some sort of fatty acid arrangement. The fatty acids are composed of methylene (or Methyl) groups, and are not water soluble.
There are three different functions for lipids in our bodies:
Forming the membranes around our cells.
Hormones and vitamins