You are preparing to leave home for several days. You cannot bring along your pets and your houseplants, and they will both need special care because they are alive. How is a living organism different from a non-living thing? In what ways is a plant different from a cat? Biochemistry is the study of the structure, composition, and chemical reactions of substances in living systems (American Chemical Society, 2012).  You explore biochemistry as you learn about the levels of living organisms and the fundamental unit of all living things—the cell. You discover what cells require to live, explore cell structure functions, and examine a critical cell component, the cell membrane. Complete the Gummy Bear Chemistry and Osmosis Lab and complete a lab report based on the virtual lab.