TAILIEUCHUNG - Lecture Biology (7th edition) - Chapter 2: The chemical context of life

This chapter will also make connections to the themes introduced in Chapter 1. One of these themes is the organization of life into a hierarchy of structural levels, with new properties emerging at each successive level. Emergent properties are apparent even at the lowest levels of biological organization - the ordering of atoms into molecules and the interactions of those molecules. The intricate structures and complex functions of all living organisms arise from these interactions. | Lecture Biology (7th edition) - Chapter 2: The chemical context of life Chapter 2 The Chemical Context of Life PowerPoint Lectures for Biology, Seventh Edition Neil Campbell and Jane Reece Lectures by Chris Romero Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • Overview: Chemical Foundations of Biology Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • The bombardier beetle uses chemistry to defend itself Figure Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • Concept : Matter consists of chemical elements in pure form and in combinations called compounds Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Elements and Compounds • Organisms are composed of matter, which is anything that takes up space and has mass Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • Matter is made up of elements, substances that cannot be broken down to other substances by chemical reactions Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • A compound – Is a substance consisting of two or more elements combined in a fixed ratio – Has characteristics different from those of its elements + Figure Sodium Chloride Sodium Chloride Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings Essential Elements of Life • Essential elements – Include carbon, hydrogen, oxygen, and nitrogen – Make up 96% of living matter Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • A few other elements – Make up the remaining 4% of living matter Table Copyright © 2005 Pearson Education, Inc. publishing as Benjamin Cummings • The effects of essential element deficiencies Figure (a) Nitrogen deficiency (b) Iodine deficiency .

• Sinh học
• Campbells Biology
• Lecture Biology
• Biological sciences
• Biological organization
• Systems biology
• The chemical context of life
• Restoration ecology
• Conservation biology
• Ecosystem dynamics
• Water molecules
• The molecular diversity of life
• Function of macromolecules
• Membrane structure
• Metabolism transforms matter
• Cellular respiration
• Chemical energy of food
• Cell communication
• The cell cycle
• Sexual life cycles
• The gene idea
• Locating genes
• The molecular basis of inheritance
• Genetic information
• Microbial model systems
• Eukaryotic genomes
• DNA technology
• The genetic basis of development
• Darwin’s theory
• The evolution of populations
• The origin of species