Contains the following lessons from part 1 of the organisms respond to changes in the environment section: L1 - Survival and response L2 - Plant growth factors L3 - A reflex arc L4 - Receptors L5 - Control of heart rate

Contains the following lessons: L1 Neurons and the nervous system L2 Action potentials and nerve impulses L3 The passage of an action potential L4 Speed of a nerve impulse L5 Structure and function of synapses L6 Transmission across a synapse L7 Structure of a skeletal muscle L8 Contraction of skeletal muscle

Introduction to Biological Molecules Overview of biological molecules and bonding basics. Spec No: 3.1.1 Monomers and Polymers Introduction to monomers and polymerization. Spec No: 3.1.1.1 Carbohydrates: Monosaccharides Structure and function of glucose and other monosaccharides. Spec No: 3.1.2 Carbohydrates: Disaccharides and Polysaccharides Formation of disaccharides and polysaccharides; tests for carbohydrates. Spec No: 3.1.2 Lipids: Triglycerides and Phospholipids Structure, function, and formation of lipids. Spec No: 3.1.3 Proteins: Amino Acids and Peptide Bonds Structure and properties of amino acids; peptide bonding. Spec No: 3.1.4 Proteins: Levels of Structure Primary to quaternary structures of proteins. Spec No: 3.1.4 Enzymes: Introduction to Enzyme Action Basic concepts of enzyme structure and function. Spec No: 3.1.4.2 Enzymes: Factors Affecting Enzyme Activity Exploring temperature, pH, and substrate concentration on enzymes. Spec No: 3.1.4.2 Required Practical 1 (RP1): Investigating the Effect of Temperature on Enzyme Activity Practical focusing on trypsin and temperature effects.