The Principles of Cellular and Molecular Biology.pdf - The Principles of Cellular and Molecular Biology Studying Life ● Sections histology

The Principles of Cellular and Molecular Biology.pdf - The...

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The Principles of Cellular and Molecular Biology Studying Life Sections - histology, bacteriology, paleobiology (already lived and now in fossil form) 7 Common characteristics of living organisms: Composed Of One Or More Cells (E.G. Bacterium, Frog); How About Viruses? Have Genetic Information - Necessary For Passing Traits And Evolution Reproduction (Uses Genetic Materials And Other Cellular Components) Are Genetically Related (Some Are Close Relatives & Some Are Distant) And Evolved Use Of Environmental Energy To Do Biological Work (Function, Growth And Reproduction) Can Regulate Internal Environment - Homeostasis Ordered Complexity Cells the basic unit of life Organisms are made up of cells Organisms: Unicellular - one cell makes the entire individual organism e.g. bacteria, protozoa, unicellular algae Multicellular - more than one cell cells are functionally and structurally dependent on other cells Building blocks of life Cell Theory Originally by Matthias Schleiden (German biologist) and Theodor Schwann (Belgium) Cells - the basic structural and physiological units of all living organisms. Cells are both distinct entities and building blocks of more complex organisms. Extracellular matrix - substance that fills the space between cells in many multicellular organisms Additional aspects of modern cell theory Derived from preexisting cells (no spontaneous genesis). Different types of cells are similar in chemical composition but not same) Most of the chemical reactions of life occur in aqueous solution within cells.
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