CHAPTER 1 Outline

CHAPTER 1 Outline - CHAPTER 1: INTRODUCTION: BIOLOGY TODAY...

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1 CHAPTER 1: INTRODUCTION: BIOLOGY TODAY Concepts to Master I. LIVING SYSTEMS EXHIBIT COMMON PROPERTIES II. LIVING SYSTEMS GENERATE BIOLOGICAL DIVERSITY I. LIVING SYSTEMS EXHIBIT COMMON PROPERTIES A. What is BIOLOGY? (p. 2) The Scientific study of Life B. Life is Best Defined by its Properties. (p. 3) Viruses- They don’t have cells PROPERTIES OF LIFE 1. CELLS (p. 5) -CELL-is lowest level capable of performing all the activities of life *All organisms are composed of cells *Cells represent the basic unit of structure and function for all life *TWO major categories PROKARYOTIC CELLS o Bacteria- tiny-Prokreyotic o No nucleus o No internal membranes EUKARYOTIC CELLS -Larger, Do have internal membranes, Nucleus *Organells – carryout specific functions (Nucleus,Mitochondria,Chloroplast) *Multiple chromasomes 2. DNA (pp. 5-6) *All living organisms *Molecule passed on from generation to generation -Parent to offspring *4 chemical building blocks
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2 (AGCT)- information that determines “you” 3. ENERGY UTILIZATION (pp. 4-5) Living = work Obtain and use energy requirement of life *ecosystem- energy enters ecos. as sunlight energy and leaves as heat PRODUCERS *Convert light energy into the chemical energy found in food via photosynthesis. CONSUMERS *Feed on plants either directrly or indirectly and convert chemical energy in food into ATP and heat energy. *ATP-
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CHAPTER 1 Outline - CHAPTER 1: INTRODUCTION: BIOLOGY TODAY...

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