Chapter 1

Chapter 1 - Chapter 1: Life I. Introduction to Biological...

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Chapter 1: Life I. Introduction to Biological Chemistry A. Biochemistry literally means the study of the chemistry of life 1. Life began 3-5 billion years ago 2. Laid the basis for all life 3. “Chemical unity underlies Biological diversity” The first living things actively figured out ways to make energy for themselves and survive. Therefore, these living organisms were naturally selected for. For instance, there are only 6 major types of enzyme classes that all organism use. All the enzyme classes mechanistically function in the same way. These early organisms used the same proteins. B. Life expresses itself through biomolecules 1. a.k.a. Biological marcomolecules – Life comes about by taking an inert monomer and turns it into an active polymer, then the end result is this thing we call “life”. (Reactions of biomolecules are based on the reactions of their functional groups) a. Inert monomer examples: i. Nucleotides can yield the human genome ii. Amino Acid can yield proteins iii. Carbohydrates can yield cellulose or glycogen b. Biochemists are interested in looking at how we take inert monomers and turning them into polymers that bring about life II. Types of biomolecules—many are polymers of repeating subunits A. Proteins : a. Composed of monomers of amino acids b. The order of the amino acids has an important effect on the properties of the protein formed
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Chapter 1 - Chapter 1: Life I. Introduction to Biological...

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