AP Biology Chemistry of Life Subunits & Objectives water * explain polarity and hydrogen bonding as it relates to the properties of water * describe four properties of water that are important to life * show why water makes a good solvent * explain the concept of pH and how this affects organisms * define buffer and give one example from a living system * explain the concepts of diffusion and osmosis organic molecules * describe the atomic structure of carbon and explain why it is considered the backbone of life * list the name, structure and function of the seven chemical groups that are key to functioning biomolecules. * describe the structure, function, and building blocks of carbohydrates, proteins, lipids, and nucleic acids * detail the four levels of protein structure and describe the chemical bonds involved * describe the history of our knowledge of DNA & RNA structure enzymes * describe how activation energy is involved in chemical reactions * explain what an enzyme is and how it works * list four different ways an enzyme can lower activation energy * relate substrate specificity to enzyme action * describe factors that can affect the activity of enzymes * explain how allosteric regulation controls enzyme activity thermodynamics [PUT WITH CELLULAR ENERGETICS UNIT] * explain the concept of metabolism * describe the various forms of energy and how these relate to organisms * explain the laws of energy transformation * relate the concepts of free energy, enthalpy, and entropy * compare and contrast endergonic and exergonic reactions * list the three types of work a cell can perform * describe the structure of ATP, its regeneration and how it performs work AP Biology Chemistry of Life Subunits & Key Terms: define each using complete sentences. water polarity adhesion temperature joule heat of vaporization aqueous molarity acid pH buffer hydrogen bond surface tension heat kcal (Calorie) solute hydrophilic hydrogen ion base cohesion specific heat calorie evaporation solution hydrophobic hydroxide ion neutral solution major elements of life isomers (& examples) double bond hydrocarbons functional groups activation energy enzyme-substrate complex denatured competitive inhibitors feedback inhibition transition state active site cofactors noncompetitive inhibitors potential energy catabolic pathways chemical energy nonspontaneous process free energy exergonic ATP metabolism anabolic pathways entropy system enthalpy endergonic hydrolysis organic molecules organic chemistry carbon skeleton variation covalent bond enzymes catalyst substrate induced fit coenzyme allosteric regulation thermodynamics kinetic energy metabolic pathway thermal energy spontaneous process surroundings equilibrium energy coupling phosphorylated