Chapter 25 - Synthetic and Natural Organic Polymers

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Polyethylene

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Chemistry

11 Terms

1

Polyethylene

________ is an example of a homopolymer, which is a polymer composed of only one monomer type.

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2

Nucleotides

________ are made up of three groups: a base, deoxyribose, and a phosphate group.

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3

styrene

Because ________ and butadiene are separate monomers, SBR is classified as a copolymer, which is a polymer made up of two or more monomers.

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4

Tyvek

________ is used for home isolation as a specially treated kind of polyethylene.

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5

Erwin Cargaff

tested and observed certain regularities of DNA molecules obtained from different sources.

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6

NH2

A substance with at least one amino group (________) and at least one carboxyl group are known as an amino acid.

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7

hydrogen bands

While ________ can build up between any two bases called base pairs, the best connections between adenine and thymine are found between cytosine and guanine, and Watson and Crick have found.

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8

Polymers

________ began to develop in the 1920s by studying the puzzling behaviour, which included wood, gelatine, cotton and rubber.

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9

Proteins

________ are polymers of amino acids that are involved in practically every biological process.

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10

Polymer chemistry

________ emerged in the 1920s as a result of research into the perplexing behavior of various materials like wood, gelatin, cotton, and rubber.

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11

Rules of Chargaff

Adenine (purine) is the same as Thymine (pyrimidine); i.e., A = T or A/T = 1.

Cytosine (pyrimidine) is equal to guanine (purine); in other words, C = G, or C/G = 1.

The total number of bases of purine equals the total number of bases of pyrimidine, i.e. A + G = C + T

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