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Molecules of Life!. Dylan Herbst, Ashley Ortiz, Nathaniel Radovan, & Kimberly Zindel. Chapter Preview. Concept 5.1 Most molecules are polymers, built from monomers. Concept 5.2 Carbohydrates serve as fuel and building material
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Molecules of Life! Dylan Herbst, Ashley Ortiz, Nathaniel Radovan, & Kimberly Zindel
Chapter Preview • Concept 5.1Most molecules are polymers, built from monomers. • Concept 5.2 Carbohydrates serve as fuel and building material • Concept 5.3Lipids are a diverse group of hydrophobic molecules
What Happened?!? • Four major classes of biological molecules are carbohydrates, proteins, lipid, and nucleic acid. • Polymers are structured many similar blocks connected by covalent bonds( in English: train consisting of a chain of cars.) • Carbohydrate are made up of sugar and polymers of sugar • Most of the name related to sugar end in -ose • Lipid= aqua phobia (scared of the water) • Lipids consist of fatty acids, phospholipids, and steroids
Let’s Get Clarifying! • Starch VS Cellulose: Starch is Storage for plants, Cellulose strengthens cells’ walls • The Sat in the Fat: Saturated fats are saturated with carbon, packed closely together, and a solid. Unsaturated fat is a liquid. • Philoso-what?: Philosolipids have water-loving heads and water-hating tails. They group in Bilayer structure to shield tails in water. • Cholesterol’s good?: Cholesterol is a steroid that produces other steroids • Hydrolysis and Dehydration?: Hydrolysis is splitting two molecules by adding H2O. Dehydration synthesis combines two molecules by removing H2O.
????Questions???? • Give the characteristics of carbohydrates and name two groups of carbohydrates? • Give an example on how starch is used in plants? • Name and define the synthesis and breakdown of polymers. • Explain the difference in saturated fat and unsaturated fat . • What does the ester linkage contain?
What do you see? • The most essential biological molecules are found in this chapter and can be found everywhere. • Polymers- long molecules that has similar or identical building blocks in a covalent bond.(Chapter 26) • Carbohydrates-gives fuel or energy and acts like building material.(Chapter 7) • Lipids-Have little or no affinity to water.(Chapter 45) • Protein-Speed up chemical reaction, while others play a role in structural support, storage, transport, movement, and defense against foreign substance.(Chapter 47)
The arrangement of cellulose in plant cell walls
Example of saturated and unsaturated fats and fatty acids