PPT 4-1 ATP the energy molecule, chemical reaction basics;
PPT 4-2 Enzymes (proteins), chemical reactions in cells, catalysts, substrates and products;
PPT 4-3 Photosynthesis - how plants make their own food in their chloroplasts;
PPT 4-4 Cellular respiration - how all eukaryotic cells get energy from food molecules;
PPT 4-5 Chemosynthesis