BIOL130 Chapter Notes - Chapter 1: Scanning Electron Microscope, Growth Medium, Cell Membrane
22 Jan 2015
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Chapter 1 cells: the fundamental units of life. Cells vary in size, shape, and chemical requirements: differences in which reflect differences in cell function. Some modifications specialize a cell so much that they spoil its chances of reproducing. Rendering many cells in multicellular organisms to depending on fellow cells for basic requirements. The egg and the sperm are specialist cells that pass on genetic instructions of the organism to the next generation. Living things are defined in terms of growth, reproduction, and ability to respond to the environment. Cells resemble each other in terms of chemistry. Composed of same sorts of molecules that participate in the same types of chemical reactions: genes are carried in dna molecules. Genetic information is written in the same chemical code, constructed out of the same chemical building blocks, interpreted by the same chemical machinery, and replicated in the same way when an organism reproduces. Nucleotides: 4 monomers that make up dna polymer chains.
