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Nitrogen cycle

Chapter 5 Test Bank AP Bio

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Campbell's Biology, 9e (Reece et al.) Chapter 5 The Structure and Function of Large Biological Molecules In Chapter 5, the principles of chemistry covered in earlier chapters are applied to the understanding of biological polymers and lipid membranes. The emphasis is on properly linking monomers and their polymers, and on the structural and functional diversity of the different polymer types. Particular attention is given to protein structure, because this is central to understanding subsequent chapters on metabolism, molecular biology, and molecular medicine. Multiple-Choice Questions 1) Humans and mice differ because A) their cells have different small organic molecules. B) their cells make different types of large biological molecules.

Campbell Biology 9th Edition Chapter 5

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LEVELS OF PROTEIN STRUCTURE Primary Structure?the unique sequence of amino acids, type sequence and number; determines the other three structures It is held together by peptide bonds between the carboxyl group of one amino acid with the amino group of another amino acid B. Secondary Structure? regular repeated coiling and folding of the polypeptide caused by H?bonds between atoms in the polypeptide backbone (a hydrogen on a nitrogen and a double?bonded oxygen atom) see Fig. 5.20 p. 76 a. alpha helix? a delicate coil held together by hydrogen bonding between every fourth peptide bond b. Beta pleated sheet? where regions of the chain lie parallel to each other LEVELS OF PROTEIN STRUCTURE

AP bio macromolecules ppt

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* Chapter 5 The Structure and Function of Macromolecules * The Molecules of Life Overview: Another level in the hierarchy of biological organization is reached when small organic molecules are joined together Atom ---> molecule ---? compound * Macromolecules Are large molecules composed of smaller molecules Are complex in their structures Figure 5.1 * Macromolecules Most macromolecules are polymers, built from monomers Four classes of life?s organic molecules are polymers Carbohydrates Proteins Nucleic acids Lipids * A polymer Is a long molecule consisting of many similar building blocks called monomers Specific monomers make up each macromolecule E.g. amino acids are the monomers for proteins * The Synthesis and Breakdown of Polymers
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