At a molecular level, they are bonds that are weak and flexible, allowing for chemical reactions that occur in the gas phase. These bonds are also the most common to break, and they have the lowest energy of all bonds. This explains why they break under stress.
But a weak covalent bond isn’t good. If you break that bond you’ll lose energy that you need to make other chemical reactions happen. This is why when you do a chemical reaction you use energy to make the chemical bond stronger. For example, when you add a chemical into water, the water will break the bond and make that bond stronger. The same thing happens when you break a weak covalent bond in fats and other carbohydrates.
This is one of the reasons why carbohydrates and lipids tend to be the targets of most drug abuse. So in terms of covalent bonds, your body tends to want to break those bonds. But covalent bonds are not always broken. In fact, some covalent bonds can be made stronger by using energy. For example, when you take a chemical that has covalent bonds and add energy, then the bond is broken.
And then in the end you have a stronger bond. But what happens when you break a weak bond? Your body tends to use that energy to repair that bond. But you can also make a weak covalent bond stronger again.
So why does this happen? Well, when you take a weak bond there’s a lot of energy in the bond to repair. And if that energy is not used to repair the bond, then it will break again. But when you take a strong bond there’s very little energy in the bond to repair. And if you don’t use that energy to repair that bond, then it will break again.
Some of the strong, such as carbohydrates, lipids, and sugars, tend to be more durable. But because they tend to be broken less often, they tend to be more fragile.
So why does it happen? Well, why do carbohydrates and sugars break less frequently than bonds in proteins? Carbons tend to be broken less often but because it takes more energy to repair them, they tend to break more easily. Also, lipids, such as fats, tend to break more easily.
How about the other two: Carbons are an energetic, fluid, and fluid-fueled molecule that can be broken into larger molecules by the action of carbon dioxide. This energy is carried through their sugar chains in the bonds they have.
Well, the fact is, when a carbohydrate breaks down it breaks in a way that is less energetically favorable than when a protein breaks down. So, the protein bond breaks less energetically because it is less likely to be broken. This is why we have a lot of proteins in our body. They are less energetically favorable than the bonds they form with the other molecules in our body.
The same principle applies to lipids. We have a lot of lipids in the body. So, the bonds of the lipid’s molecules are weaker than the proteins we are made of.