The 5 Most Important Molecules in Your Body

The 5 most important molecules in your body help detremine who you are and how you function.

1. DNA

DNA, or Deoxyribonucleic acid as it is properly termed is without a doubt one of the most important molecules in our bodies, it is the instruction on how we grow and mature, and live. We know it’s vital in the early stages of development but the thing we often forget about DNA is that it is constantly working. Every cell contains DNA and this is always making the instructions for proteins to build new cells, it never ever stops.

2. Pepsin

Pepsin is a digestive enzyme, having a primary function of breaking down proteins from food and converting them back to amino acids. A protein is a string of amino acids placed in certain orders coded for by our DNA. Breaking proteins in specific places creates amino acids, and this is what Pepsin specialises in. Pepsin is so effective, that we actually produce it in a non active form so as to stop it from eating our stomach lining.

3. Haemoglobin

It’s fair enough to talk about how amazing DNA is for building incredible proteins and enzymes, like Pepsin, but it needs a lot of energy to do this, our body needs constant levels of energy to keep replicating cells and growing, it’s vital for the maintenance of our internal environments. Haemoglobin is the protein inside red blood cells that transports oxygen and carbon dioxide around the body, it’s the molecule enabling our gas exchange systems. It carries the oxygen to cells that need it and carbon dioxide to cells that are going to expel it, pretty impressive for a string of amino acids.

4. ATP

ATP, otherwise known as adenosine triphosphate is energy for our body, it is needed for everything, every process in the body, even making ATP, requires ATP it is our fuel. It contains 3 phosphorus atoms, which come in handy when storing a build up of energy. When the body needs any for any purpose, breaking one of these 3 phosphates, or phosphorus atoms off from the molecule releases a large amount of energy, and this is what powers every reaction in our bodies.

5. Cholesterol

Cholesterol isn’t as bad as the media make it out to be, well that sort is, but not all cholesterol is evil, it is actually one of the most important molecules in your body. It is a hormone, meaning a chemical messenger, it’s all very well having the energy transported to the place where growth or repair or anything is needed, but how do any molecules know where to go? That’s where cholesterol and other hormones come in. the bad side of cholesterol is down to lipoproteins, which transport them around. When these proteins get too much fat on them they build up more of this than protein and an imbalance causes them to become inefficient at transporting cholesterol so it gets stuck tot he walls of blood vessels.