| Concepts | Questions | Media Resources |
2.1 Basic Chemistry - All matter is composed of elements, each having one type of atom.
- Atoms react with one another, forming molecules, and compounds.
| In what ways do the atoms of one element differ from those of another element?
Answer When do ionic and covalent bonds form?
Answer
| Essential Study Partner
Basic Chemistry
Atoms
Bonds Art Quizzes
Electron Energy Levels Animation Quizzes
Atomic Structure
Covalent Bond
Ionic Bond |
2.2 Water and Living Things - The existence of living things is dependent on the characteristics of water.
- The hydrogen ion concentration in water changes when acids or bases are added to water.
| - List two features of water molecules that give rise to all the beneficial attributes of water.
Answer
- What are acids and bases, and how do living things regulate pH?
Answer
| Essential Study Partner
Water
Water Properties
pH
Acid Rain Art Quizzes
Molecular Structure of Water
Water as a Solvent
pH Scale
Acid Precipitation |
2.3 Organic Molecules - Macromolecules are polymers that arise when their specific monomers (unit molecules) join together.
| - Describe an organic molecule.
Answer
- What types of bonds do organic molecules contain?
Answer
| Essential Study Partner
Organic Chemistry General Biology Weblinks
Biochemistry |
2.4 Carbohydrates - Carbohydrates function as a ready source of energy in most organisms.
- Glucose is a simple sugar; starch, glycogen, and cellulose are polymers of glucose.
- Cellulose lends structural support to plant cell walls.
| - List several functions of carbohydrates in animal and plant cells.
Answer
- What monomer makes up carbohydrates?
Answer
| Essential Study Partner
Carbohydrates Art Quizzes
Disaccharides |
2.5 Lipids - Lipids are varied molecules.
- Fats and oils, which function in long-term energy storage, are composed of glycerol and three fatty acids.
- Sex hormones are derived from cholesterol, a complex ring compound.
| - How do saturated fatty acids differ from unsaturated fatty acids?
Answer
- How does the structure of fats differ from that of phospholipids?
Answer
| Essential Study Partner
Lipids Art Quizzes
Saturated and Unsaturated Fats |
2.6 Proteins - Proteins help form structures (e.g., muscles and membranes) and function as enzymes.
- Proteins are polymers of amino acids.
| - What are some of the many functions of proteins in cells?
Answer
- Why does denaturation of a protein cause it to stop functioning?
Answer
| Essential Study Partner
Proteins Explorations
How Proteins Function General Biology Weblinks
Protein Structure and Function Art Quizzes
Peptide Bond |
2.7 Nucleic Acids - Nucleic acids are polymers of nucleotides.
- The human genome is composed of DNA (deoxyribonucleic acid). DNA specifies the correct ordering of amino acids into proteins, with RNA as intermediary.
| - Are the building blocks of nucleic acids the same for RNA and DNA?
Answer
- What is the role of the nucleotide ATP in the cell?
Answer
| Essential Study Partner
Nucleic Acids Art Quizzes
DNA Structure |
