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Quiz yourself by thinking what should be in each of the black spaces below before clicking on it to display the answer.
        Help!  

Question
Answer
True or False:The ability of water to retain heat helps cells maintain Homeostasis   True  
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T/F:Nonpolar molecules dissolve well in water   False  
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T/F:Water molecules attract nonpolar molecules such as oil   False  
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T/F:Organic compounds contain carbon atoms are covalently bonded to other elements typically hydrogen oxygen and other carbon atoms   True  
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True or false: DNA stores hereditary information that can be used to make proteins   True  
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T/F:The amount of energy needed to cause a chemical reaction to start is called activation energy   True  
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True or false enzymes speed up a chemical reaction by increasing the activation energy of the reaction   False  
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T/F: When an enzyme binds with its substrate the activation energy needed for the chemical reaction occur is increased   False  
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Hydrogen bonds can form between regions of polar molecules that are...   Oppositely charged  
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The attraction among molecules of different substrates is called...   Adhesion  
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Why is water necessary to your body?   It dissolves and transports substances  
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Which phrase best describes a solvent?   Present in a greater concentration than solutes  
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A solution with a high concentration of Hydrogen ions is...   Very acidic  
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Fats oils and cholesterol are all types of...   Lipids  
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DNA and RNA are two types of...   Nucleic Acids  
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Chemical reactions change substances into different substances by...   Breaking and forming chemical bonds  
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Which phrase best describes an exothermic chemical reaction?   Releases more energy than it absorbs  
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Which phrase best describes the effect of a catalyst on a chemical reaction?   Decreases the activation energy  
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Enzymes affect chemical reactions in living organisms by...   Weakening bonds in reactants  
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The specific reactants that an enzyme acts on are called...   Substrates  
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The chemical formula shows the...   Kinds of elements found in the Compound  
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Nonpolar molecules have...   No negative or positive poles  
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When Placed in the same container, oil and water do not mix because...   Water is polar and oil is nonpolar  
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Acidic solutions have a pH that is...   Less than seven  
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What is the following is not organic macromolecule carbohydrates ice lipids nucleic acid   Ice  
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Which of the following organic molecules are classified as carbohydrates amino acids fatty acids nucleotide sugars   Sugars  
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all Organic compounds contain the element...   Carbon  
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Polysaccharides are...   Carbohydrates  
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Lipids are...   Nonpolar molecules  
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Long chains of amino acids are found in...   Proteins  
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Which of the following is not a lipid saturated fat, starch, cholesterol, earwax   Starch  
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Lipids are soluble in...   oil  
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Which of the following organic molecules are most closely related to lipids amino acids,fatty acids,nucleotide,sugars   Fatty acids  
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Liquid fats called oils contain...   mostly unsaturated fatty acids  
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The shape of the protein is primarily determined by...   the shape and sequence of amino acids  
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The two types of nucleic acids are...   DNA and RNA  
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DNA stores...   Heredity information  
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Reducing activation energy...   is accomplished by the action of catalysts on reactants  
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A Cell contains...   Thousands of different kinds of enzymes each promoting a different chemical reaction  
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The digestive enzyme pepsin works with hydrochloric acid to break down proteins in the stomach. pepsin probably works best in a PH of...   3  
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