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29 Cards in this Set
- Front
- Back
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the atomic number represents the number of ___
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protons and neutrons in an atom
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which of the following is considered not a chemical bond? ionic, covalent, atomic, hydrogen?
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atomic is not a chemical bond
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inos with a positive charge are called_____
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cations
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of the three chemical bonds, which is considered to be the weakest?
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hydrogen bond, A weak bond between two molecules resulting from an electrostatic attraction between a proton in one molecule and an electronegative atom in the other
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what is surfactant?
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A substance that tends to reduce the surface tension of a liquid in which it is dissolved.
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what type of reaction is this?
AB>A+B |
decomposition reaction
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The normal human pH range of the blood is...
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7.35-7.45
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pH is a measurement of the concentration of what?
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hydrogen ions
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a compound is considered an organic molecule when it contains what what two things?
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carbon and hydrogen, generally oxygen as well
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proteins are chains of small organic molecules called...
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amino acids
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the most important metabolic fuel in the body is...
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glucose
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The most important high energy compound found in the body is...
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ATP
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which of the following is a disaccharide? fructose, glucose, sucrose, glycogen?
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sucrose
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a steroid is a...
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lipid
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the formation of table salt(sodium chloride) is an example of a ______ bond
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ionic
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____ refers to the breakdown of complex molecules within cells
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catabolism
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____ refers tot he synthesis of new organic molecules
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anabolism
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enzymes _______ the activation energy needed for a reaction to occur.
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decrease
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_____ accelerate chemical reactions in living cells
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enzymes
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carbon dioxide, oxygen, and water are all examples of ______ compunds.
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Inorganic
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The concentration of hydrogen ions in the body is measured by what scale?
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pH scale
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____ is an animal starch and is stored in muscle tissues and in the liver.
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glycogen
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large carbohydrate molecules are called...
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polysaccharides
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a fatty acid with double covalent bonds is considered a_____ fatty acid
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unsaturated
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peptides are molecules made up of amino acids held together by _____ bonds.
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peptide
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the four nitrogen-based molecules found in DNA are...
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adenine
guanine cytosine thymine |
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the nitrogen based molecule found only in RNA is...
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uracil
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ATP is essential for the life of a cell because it provided necessary ____ for the cell to function
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energy
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ATP is composed of _____
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adenine monophosphate and two phosphate groups
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