Media Portfolio

Chapter 20
Biochemistry

20-02

Title	Three hexoses
Caption	Structures and common sources of three important hexoses: glucose, galactose, and fructose.
Keywords	Carbohydrate, monosaccharide, hexose, hydrolized, glucose, galactose, fructose, aldose, ketose, aldohexose, ketohexose

20-04

Title	Free-aldehyde form of glucose
Caption	Ball-and-stick models of the free-aldehyde form of glucose shown extended (top) and folded (bottom). Note that in the folded model the oxygen atom on the fifth carbon is near the carbonyl carbon.
Keywords	free-aldehyde, glucose, monosaccharide, ball-and-stick, model, carbonyl, ring, cyclic, "-glucose, $-glucose, carbohydrate, extended, folded

20-09

Title	Fatty acid composition of common oils and fats
Caption	The bar graph shows the variations in percentages of saturated and unsaturated fatty acids for some common oils and fats.
Keywords	oil, fat, saturated, unsaturated, monosaturated, polyunsaturated, fatty, acid

20-10

Title	Protein molecule segment
Caption	(a) Structural formula of a segment of a protein molecule. (b) A space-filling model of a segment of a protein chain.
Keywords	protein, segment, model, life, copolymer, amino, acid

20-11

Title	Enzyme action
Caption	The lock-and-key model for enzyme action is represented here. Another model, called induced fit, accounts for cases where shapes of the substrate and active site are not perfectly complimentary, and the active site adapts to fit the substrate, like a glove that molds itself to fit the hand.
Keywords	lock-and-key, model, enzyme, action, induced fit, catalyst

20-12-01UN

Title	Nucleotide
Caption	A nucleotide consists of three parts; a sugar (ribose or deoxyribose), a heterocyclic amine base, and a phosphate unit. The sequence is shown
Keywords	nucleotide, sugar, ribose, deoxyribose, heterocyclic, amine base, phosphate, ester, nucleic, acid, DNA, RNA

20-18

Title	DNA
Caption	(a) A schematic representation of the DNA double helix. (b) A model of the DNA molecule.
Keywords	DNA, deoxyribonucleic, Watson, Crick, double-stranded, helix, phosphate, sugar, polymer, spiral, staircase, model, heterocyclic, amine, guanine, cytosine, adenine, thymine, molecule

20-20

Title	RNA molecules
Caption	RNA occurs as single strands that can form helical portions by internal base pairing.
Keywords	RNA, ribonucleic, acid, nucleotide, helical, single, strand, nucleotide, intrmolecular, molecule

Title	Proteins and Amino Acids
Caption
Keywords

Title	Dehydration of Sugar
Caption
Keywords

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