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© Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

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Page 1: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 2: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

A B

CONDENSATION HYDROLYSIS

Page 3: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 4: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 5: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)
Page 6: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

hydrophilic “head” (acidic carboxyl group)

hydrophilic “tail”

A stearic acid (saturated)

B linoleic acid, omega-6 (unsaturated)

C linolenic acid, omega-3 (unsaturated)

Page 7: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 8: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

one layer of lipids

phosphate group

Phospholipid molecule

hydrophilic head

two hydrophobic

tails

one layer of lipids

A lipid bilayer

Page 9: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 10: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

amine group

R group

carboxyl group

Page 11: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

methionine

valine

methionine – valine

Page 12: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 13: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 14: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 15: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 16: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

Page 17: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

RNA (a nucleic acid)

Page 18: © Cengage Learning 2015 - Principles of Biology 103...hydrophilic “head” (acidic carboxyl group) hydrophilic “tail” A stearic acid (saturated) B linoleic acid, omega-6 (unsaturated)

© Cengage Learning 2015

ATP (a nucleotide) base (adenine)

phosphate groups