Chapter 1

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Science is concerned with
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Terms in this set (30)
MetabolismIs the capture, storage and use of energy by an organismProducersObtain energy from non living parts of their environmentConsumersObtain energy rom the living part of their environmentHomeostasisA tendency to maintain a balanced or constant internal state; the regulation of any aspect of body chemistry, such as blood glucose, around a particular levelMoleculesGroups of two or more atoms held together by chemical bondscovalent bondA chemical bond that involves sharing a pair of electrons between atoms in a moleculeIonic bondForms between atoms with opposite electrical chargeshydrogen bondweak attraction between a hydrogen atom and another atomMacromolecules have physical properties that what do not have ?Small organic moleculesMonomerA simple compound whose molecules can join together to form polymersCarbohydratessugars and polymers of sugars (polysaccharide)PolypeptideA polymer (chain) of many amino acids linked together by peptide bonds.ProteinA three dimensional polymer made of monomers of amino acids.How many amino acids are there?20 amino acidsCarboxyl end link with which endPeptide endPolypeptidesAre formed when the amino acid linked to the carboxyl group of another through a peptide bondHydrophilicwater lovingFatty acids are ...hydrophobicSaturated fatA lipid made from fatty acids that have no double bonds between carbon atomspPhospholipidsa lipid consisting of a glycerol bound to two fatty acids and a phosphate group. (Hydrophobic)