Learning Objectives By the end of this section, you will be able to: Chloe is a public health official working for the local government. They have been preparing a new program that will provide one year of comprehensive nutritional analysis…
Learning Objectives By the end of this section, you will be able to: Shanae is in her late twenties and is several years into her career as a marketing consultant for a communications company. She finds life busy and fulfilling,…
Learning Objectives By the end of this section, you will be able to: Maya, who is in her late forties, never understood the draw of social media. She put off creating a Facebook account until she found herself missing out…
Learning Objectives By the end of this section, you will be able to: Hosea’s eighteen-year-old son, Landon, is about to graduate from high school. The family has taken several road trips to visit various colleges around the region, touring each…
Figure 1.1 Where are each of these travelers in Grand Central Station headed? What hopes and dreams fuel their day? What experiences and responsibilities shape that day? The underpinnings of those answers lie in the study of lifespan development. (credit: modification of…
Learning Objectives By the end of this section, you will be able to: All living organisms on earth consist of one or more cells. Each cell runs on the chemical energy found mainly in carbohydrate molecules (food), and the majority…
Energy and Metabolism Cells perform the functions of life through various chemical reactions. A cell’s metabolism refers to the combination of chemical reactions that take place within it. Catabolic reactions break down complex chemicals into simpler ones and are associated…
Learning Objectives By the end of this section, you will be able to: You have learned about the catabolism of glucose, which provides energy to living cells. But living things consume more than just glucose for food. How does a…
Learning Objectives By the end of this section, you will be able to: In aerobic respiration, the final electron acceptor is an oxygen molecule, O2. If aerobic respiration occurs, then ATP will be produced using the energy of the high-energy…
Learning Objectives By the end of this section, you will be able to: The Citric Acid Cycle In eukaryotic cells, the pyruvate molecules produced at the end of glycolysis are transported into mitochondria, which are sites of cellular respiration. If…