Chapter 1 notes - 10 unifying themes in biology 1. There is...

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Consumers Animals Decomposers Fungi and bacteria C,H,O,N,P in soil, water, air Producers Plants and algae Glucose molecules Another group of enzymes Breaks down glucose to create ATP for cell work. A group of enzymes Builds glycogen by linking glucose molecules into chains. Figure 1.11 Figure 1.12 Prokaryotes from diverse habitats Metabolically divers: some make food, some absorb it. Domain archaea Prokaryotes from harsh habitats Make food by chemosynthesis More closely related to eukaryotes then bacteria are Domain Eukarya Eukaryotes divided into four kingdom's Kingdom protista Kingdom fungi Kingdom plantae Kingdom animalia Bacteria Archaea Eukarea Common ancestor Ancestor population Population A Desert island Desert island Population B Rain forest Natural selection Natural selection New species A New species B Roughly 10,000 years New tools Science Technology Society Values, needs Goods and services Shape direction Shape direction Tries to educate Affects our well being 10 unifying themes in biology 1. There is a hierarchy of structural levels in biological level - Each has emergent properties - Novel properties arising from interaction of component parts (Figure 1.3) Biosphere Ecosystem Community Population Organism – individual living thing – unicellular, colonial (all the cells are the same), Multi- cellular Organ system Organ Tissue Cell – smallest living unit – is the basic unit of structure and a function Organelle – mitochondria, nucleus, endoplasmic reticulum ATP DNA Molecule – smallest unit of a compound Atom – smallest unit of an element Properties of life emerge at the level of the cell. We are more familiar with them as displayed as multi-cellular organisms. (Fig 1.2) A. Order – highly organized body plan B. Reproduction – life comes from life ( biogenesis) C. Growth and development – controlled by DNA program in the fertilized egg
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D. Energy utilization – energy of food molecules is converted to a form that can be used to do work E. Response to the environment – change in the environment triggers change in behavior F. Homeostasis – regulatory mechanisms maintain a stable internal environment G. Evolutionary adaptations – evolutionary traits that help an organism survive in its
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This note was uploaded on 02/22/2008 for the course BI 151 taught by Professor Bettedoezema during the Fall '07 term at Grand Rapids Community College.

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Chapter 1 notes - 10 unifying themes in biology 1. There is...

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