Biochemistry Is A Branch Of Life Science Concerned With The Chemical Processes That Occur Within A Living Cell Or Organism. Its Focus Is On Understanding The Elements That Make Up The Living World, Such As Proteins, Carbohydrates, Fats, And Nucleic Acids. It Is Also Concerned With Investigating And Analyzing The Chemical Composition And Interactions Of These Components To Gain Insight Into Their Roles In Cellular Processes And How They Interact With Each Other. In Addition, Biochemistry Investigates The Chemistry Of Living Things And How They Interact With The Environment. One Of The Most Important Components Studied By Biochemists Are Proteins. Proteins Are Large Molecules Consisting Of Small Building Blocks Called Amino Acids. Proteins Are Essential To All Forms Of Life And Carry Out A Wide Variety Of Functions Including Metabolism, Transport, Communication, And Protection. Another Major Class Of Biomolecules Studied By Biochemists Are Carbohydrates. These Are An Essential Energy Source And Also Play A Direct Role In Holding Cells Together And Stabilizing Their Membrane. Fats Are Also Important Components That Provide Structure And Insulation To Living Cells. In Addition, Lipids Are Involved In Signaling Pathways And Act As Signaling Molecules. Nucleic Acids Are Also Key Components Of Biochemistry.