PowerPoint Presentation Unit 2 Molecular Biology Essential Ideas 2.1 - Living organisms control their composition by a complex web of chemical reactions Basic Background…
Organic Chemistry Chapter 22-23 Organic Chemistry Study of carbon-based compounds Carbon has 4 valence electrons Carbon always forms 4 covalent bonds N (3), O (2), H (1)…
5.2 Reading the Periodic Table Vertical Columns Known as families or groups Elements in a column tend to have similar properties Also have the same number of valence, or…
8.5 Energy Focus 1: Living organisms make compounds which are important sources of energy The sun is the source of energy on Earth Sun Autotrophs make their own food by photosynthesis.…