Lecture 1 Intro & Chemistry of Life

Lecture 1 Intro & Chemistry of Life - Welcome to...

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1 Welcome to Biology 113 Welcome to Biology 113 Course coordinator: Betsy Wrobel-Boerner Head GTA: Wei Liu Instructors: Richard Swenson and Randy Scholl BIOLOGY 113 BIOLOGY 113 COURSE OBJECTIVE COURSE OBJECTIVE Understand the molecular and cellular basis of life TOPICS TOPICS Biochemistry : Enzymes, energetics, metabolism Cells : Components, organization, function Genes : Structure, transmission, regulation, and genetic engineering Organism : Reproduction and development Class lectures: • follow syllabus, exam schedule • use lecture slides on Carmen Print out in advance! • take notes and follow along • focus on topics covered in lectures • use study guides (on ) • use your textbook (!!) to fill in gaps
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2 USE IT !!!!!!!!! (and not just as a paperweight) • Refer to “Chapter Review” sections at the end of each chapter to help you study. – “Summary of Concepts” –“Test ing Your Know ledge” • USE THE EXAMPLES TO TEST YOUR KNOWLEDGE (Source of exam questions) • (Note: Not all questions will be relevant as some of the material in the chapters will not be covered.) Your textbook…. .. March 25, 2008 March 25, 2008 Biology 113, Lecture 1 Biology 113, Lecture 1 • Properties of life • Hierarchy of life • Classification of living organisms • Evolution of life • Process of scientific exploration Concepts: 1.1, 1.2, and 1.3 Part 1 Part 1 - Overview Overview Figure 1.2 (c) Response to the environment (a) Order (d) Regulation (g) Reproduction (f) Growth and development (b) Evolutionary adaptation (e) Energy processing Some properties of life All processes in living organisms are governed by laws of chemistry and physics.
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3 Biologists explore life from the biosphere to organisms to…. . Figure 1.3 1 The biosphere Organisms Populations Communities Ecosystems Interrelationships are found at every level … cells and to molecules. Cel 8 Cells 6 Organs and organ systems 7 Tissues 10 Molecules 9 Organelles 50 μm 10 μm 1 μm Atoms Figure 1.3 Interrelationships are found at every level, even (especially) at the molecular level Cell is the lowest level of organization that can perform all activities essential for life … cells and to molecules. Cel 8 Cells 6 Organs and organ systems 7 Tissues 10 Molecules 9 Organelles 50 μm 10 μm 1 μm Atoms Figure 1.3 Biology 113: Focus is primarily on molecular and cellular processes of life.
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4 100 μm 0.5 μm 4 μm Bacteria are the most diverse and widespread prokaryotes and are now divided among multiple kingdoms. Each of the rod-shaped structures in this photo is a bacterial cel . Protists (multiple kingdoms) are unicel ular eukaryotes and their relatively simple multicel ular relatives. Pictured here is an assortment of protists inhabiting pond water. Scientists are currently debating how to split the protists into several kingdoms that better represent evolution and diversity.
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This note was uploaded on 04/18/2008 for the course BIO 113 taught by Professor Swenson during the Spring '08 term at Ohio State.

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Lecture 1 Intro & Chemistry of Life - Welcome to...

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