Molecules Of Life Physical And Chemical Pri... | The

Because these bonds are weak, they are reversible. This allows DNA to unzip and re-zip, or proteins to change shape in response to a signal. Life exists in this delicate balance—stable enough to hold together, but flexible enough to change. 2. Thermodynamics: The Cost of Living

Everything in the universe wants to be messy (high entropy). Life, by definition, is highly organized. So, how do we defy the laws of physics? The Molecules of Life Physical and Chemical Pri...

We don't. We just trade. By breaking down food, we create enough "mess" (heat and waste) in the environment to "buy" a little bit of order inside our own cells. Understanding the of a cellular reaction tells us not just if a process can happen, but why it must happen. 3. Probability is a Biological Force Because these bonds are weak, they are reversible