What is the difference between a solute a solvent 19

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What is the difference between a solute & a solvent? 19 III. p H 20 p H Acidic solution A compound that has ____________ H + (hydrogen ions) than OH - (hydroxide ions) Basic Solution A compound that has _____________ OH - (hydroxide ions) than H + (hydrogen ions) Neutral Solution A compound that has the ______________ amount of OH - (hydroxide ions) as H + (hydrogen ions) 21 p H pH Scale describes how acidic or basic a solution is Range goes from 0 (most acidic) to 14 (most basic) a pH of 7 is _____________ (neither acidic or basic) 22 p H Scale 23 Buffer Solutions Buffer a substance that allows the solution to remain at a fairly constant pH (__________________). They accept/donate H + ions in order to maintain the pH level ex. human blood (pH 7.4) 24
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Check For Understanding Draw a pH scale and label the appropriate values as acidic, basic, or neutral What kind of solution has a high concentration of hydrogen ions (low hydroxide concentration)? What kind of solution has a low concentration of hydrogen ions (high hydroxide concentration)? What kind of solution has an equal concentation of hydrogen & hydroxide ions? 25 IV. Introduction to Organic Molecules 26 Major Biological Elements CHONPS - 97.7% of Human matter ________ Hydrogen Oxygen Nitrogen Phosphorus Sulfur 27 Major Biological Elements Carbon is the chemical “backbone” of the macromolecules found in your body 28 Organic Molecules There are four major categories of organic molecules Carbohydrates Lipids Nucleic Acids Proteins These four major categories are sometimes referred to as macromolecules because their size. Macromolecule - a large molecule 29 Monomers & Polymers Macromolecules may be composed of hundreds or even millions of atoms Some large molecules are made by joining together many similar, smaller molecular units called ________________ 30
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Monomers & Polymers Monomer Small molecular unit that is the ________ block of a larger molecule Polymer Long chain of small molecular units (monomers) connected together 31 Monomers & Polymers Monomer Polymer 32 Dehydration Synthesis/ Hydrolysis Dehydration Synthesis The process used to __________ polymers Hydrolysis The process used to ________________ a polymer 33 Dehydration Synthesis/ Hydrolysis Dehydration synthesis Hydrolysis Monomer Polymer 34 Check for Understanding What is a macromolecule? What is the difference between a monomer & a polymer? How do you form polymers? How do you break monomer units off of a polymer? 35 V. Carbohydrates 36
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Carbohydrates Carbohydrate an organic compound made up of sugar C:H:O ratio = 1:2:1 Ex: Glucose C 6 H 12 O 6 Hydrophilic - dissolves in water Monomer Unit: monosaccharide Polymer Unit: polysaccharide 37 Carbohydrate Functions Carbohydrate Functions Living things use carbohydrates as their main source of energy. Plants, some animals, and other organisms also use carbohydrates for ____________________ purposes Carbohydrates Monosaccharides Simple sugars containing just one sugar unit ex. glucose, fructose, and galactose
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