p61 3-3 second half p62 #1-5

p61 3-3 second half p62 #1-5 - Amino acids are the monomer...

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Joseph Leonard – 11/15/07 – p61 vocab 3-3; p62 #1-5 3-3 1. peptide bond – a bond in which two amino acids form a covalent bond in a condensation reaction 2. phospholipid – have two fatty acids, rather than three, joined by a molecule of glycerole 3. polypeptide – a long chain formed by amino acids bonding to each other one at a time 4. polysaccharide – complex molecule compound composed of three or more monosaccharides 5. protein – an organic compound composed of mainly carbon, hydrogen, oxygen, and nitrogen 6. ribonucleic acid – stores and transfers information that is essential for the manufacturing of proteins 7. steroid – a molecule composed of four fused carbon rings with various functional groups attached to them 8. substrate – reactant being catalyzed in an enzyme reaction 9. triglyceride – a substance composed of three molecules of fatty acid joined to one molecule of the alcohol glycerol 10. wax – a type of structural lipid Vocabulary Review 1. Explain the relationship between amino acids, peptide bonds, and proteins.
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Unformatted text preview: Amino acids are the monomer building blocks of proteins. When two are joined together in a peptide bond, they form proteins. 2. How are the structures of monosaccharides, disaccharides, and polysaccharides related to each other? Two monosaccharides form together to form a disaccharide. A polysaccharide is a complex molecule composed of three or more monosaccharides. 3. Explain the relationship between a polypeptide and a peptide bond. A polypeptide is amino acids that bond to each other one at a time to form a long chain held together by peptide bonds. 4. What is the difference between a hydrophilic and hydrophobic substance? A hydrophilic substance is attracted to water, while a hydrophobic substance tends not to interact with water molecules. 5. Why is the structure of the cell membrane referred to as a bilayer? There are two layers that compose the cell membrane...
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