Chemistry

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 10 Photosynthesis 1 The Process That Feeds the Biosphere Plants and other photosynthetic organisms contain organelles called chloroplasts Photosynthesis is the process that converts solar energy into chemical energy within chloroplasts Directly or indirectly, photosynthesis nourishes almost the entire living world Photosynthesis occurs in plants, algae, certain other unicellular eukaryotes, and some prokaryotes ? 2017 Pearson Education, Inc. 2 Autotrophs are ?self-feeders? that sustain themselves without eating anything derived from other organisms Autotrophs are the producers of the biosphere, producing organic molecules from CO2 and other inorganic molecules

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 5The Structure and Function of Large Biological Molecules 1 The Molecules of Life All living things are made up of four classes of large biological molecules: carbohydrates, lipids, proteins, and nucleic acids Macromolecules are large molecules and are complex Large biological molecules have unique properties that arise from the orderly arrangement of their atoms ? 2017 Pearson Education, Inc. Concept 5.1: Macromolecules are polymers, built from monomers A polymer is a long molecule consisting of many similar building blocks The repeating units that serve as building blocks are called monomers Carbohydrates, proteins, and nucleic acids are polymers ? 2017 Pearson Education, Inc.

? 2017 Pearson Education, Inc. Lecture Presentations byNicole Tunbridge and Kathleen Fitzpatrick Chapter 2The Chemical Context of Life 1 A Chemical Connection to Biology Biology is the study of life Organisms and their environments are subject to basic laws of physics and chemistry One example is the use of formic acid by ants to protect themselves against predators and microbial parasites ? 2017 Pearson Education, Inc. 2 Concept 2.1: Matter consists of chemical elements in pure form and in combinations called compounds Organisms are composed of matter Matter is anything that takes up space and has mass ? 2017 Pearson Education, Inc. 3 Elements and Compounds Matter is made up of elements An element is a substance that cannot be broken down to other substances by chemical reactions