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37 Cards in this Set
- Front
- Back
Describe the structure of an atom
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consists of a nucleus (which contains positively charge protons and uncharged neutrons) electrons move about in a large space surrounding the nucleus
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Ionic bond
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result from transferring electrons
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covalent bond
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result from sharing electrons
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hydrogen bonds
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result from an uneven distribution of elctions in a covalently bonded hydrogen atom to either oxygen or nitrogen
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synthesis reaction
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when two or more elements of compounds combine
a+b= ab |
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decomposition reaction
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when a compound breaks down into two or more parts
ab=a+b |
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exchange reactions
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when the positive portion of one compound takes the place of the positive potion of another compound
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double displacement
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ab+cd= ad+cb
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single displacement
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a+cd=c+ad
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Acids have a ___taste and react with many ______
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sour taste
metals |
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Acids release ______
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hydrogen ions
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Acids are _____ donors
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proton
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bases have a ____taste, feel ____ and are ____ ____
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bitter
slippery proton acceptors |
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common inorganic bases contain ________ _____
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hydroxide ions
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pH measures the ____ ____ concentration in fluids
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hydrogen ion
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________reactions combine an acid with a base to produce a salt plus water
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neutralization
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strong acids have a ___pH
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low
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strong bases have a ___pH
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high
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Carbohydrates
Elements: Building blocks: Formation: Decomposition: Function: |
E: C,H,O
B: monosaccharides F: dehydration synthesis D: hydrolysis F: source of cellular fuel, structural components |
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Lipids
Elements: Building blocks: Formation: Decomposition: Function: |
E: C,H,O
B: glycerol and 3 fatty acids F: dehydration synthesis D: hydrolysis F: body fuel and structural components |
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Protein
Elements: Building blocks: Formation: Decomposition: Function: |
E: C,H,O,N
B: amino acids F: dehydration synthesis D:hydrolysis F: structural material and enzymes |
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Nucleic acids
Elements: Building blocks: Formation: Decomposition: Function: |
E: C,H,O,N,P
B: nucleotides F: dehydration synthesis D: hydrolysis F: protein synthesis and cell replication |
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Hydrolysis
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requires the addition of water to break apart macromolecules
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dehydration synthesis
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require the removal of water to combine building blocks into macromolecules
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contrast structural and functional proteins
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find later
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describe the mechanism of enzyme activity
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-enzymes are tertiary proteins that act as catalysts speeding up reactions
-enzymes lower the activiation energy needed tostart a chemical reaction allowing them to occur at normal body temperatures -enzymes have a specifically shaped active site that holds the reactants or subtrates in the proper position for reactions to occur -some enzymes are purely protein other have cofactors like vitamin -one enzyme controls on reaction |
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DNA is what
RNA is what |
deoxyribose sugar
ribose sugar |
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How many types does DNA have?
RNA? |
D-one type
R- 3 types (tRNA, rRNA, mRNA) |
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what is the shape of DNA?
RNA? |
D- double helix
R- single strand |
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where is DNA found?
RNA? |
D-nucleus
R-cytoplasm |
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What is DNA made from?
RNA? |
d- adenine, thymine, cytosine and guanine
r- adeline,uracil,cytosine, guanine |
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What is the purpose of DNA?
RNA? |
d-holds the genetic instructions
r-carries out the instructions |
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ATP is made form a single what
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adenine RNA nucleotide
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What bonds store energy for later use by the cell
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high energy phosphate bonds
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ATP drives what for reactions
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enzymes
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ATP drives what which is use in transport
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solute pumps
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ATP drives what like muscle contractions
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mechanical operation
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