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37 Cards in this Set

  • Front
  • Back
Describe the structure of an atom
consists of a nucleus (which contains positively charge protons and uncharged neutrons) electrons move about in a large space surrounding the nucleus
Ionic bond
result from transferring electrons
covalent bond
result from sharing electrons
hydrogen bonds
result from an uneven distribution of elctions in a covalently bonded hydrogen atom to either oxygen or nitrogen
synthesis reaction
when two or more elements of compounds combine
a+b= ab
decomposition reaction
when a compound breaks down into two or more parts
ab=a+b
exchange reactions
when the positive portion of one compound takes the place of the positive potion of another compound
double displacement
ab+cd= ad+cb
single displacement
a+cd=c+ad
Acids have a ___taste and react with many ______
sour taste
metals
Acids release ______
hydrogen ions
Acids are _____ donors
proton
bases have a ____taste, feel ____ and are ____ ____
bitter
slippery
proton acceptors
common inorganic bases contain ________ _____
hydroxide ions
pH measures the ____ ____ concentration in fluids
hydrogen ion
________reactions combine an acid with a base to produce a salt plus water
neutralization
strong acids have a ___pH
low
strong bases have a ___pH
high
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
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
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
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
Hydrolysis
requires the addition of water to break apart macromolecules
dehydration synthesis
require the removal of water to combine building blocks into macromolecules
contrast structural and functional proteins
find later
describe the mechanism of enzyme activity
-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
DNA is what
RNA is what
deoxyribose sugar
ribose sugar
How many types does DNA have?
RNA?
D-one type
R- 3 types (tRNA, rRNA, mRNA)
what is the shape of DNA?
RNA?
D- double helix
R- single strand
where is DNA found?
RNA?
D-nucleus
R-cytoplasm
What is DNA made from?
RNA?
d- adenine, thymine, cytosine and guanine
r- adeline,uracil,cytosine, guanine
What is the purpose of DNA?
RNA?
d-holds the genetic instructions
r-carries out the instructions
ATP is made form a single what
adenine RNA nucleotide
What bonds store energy for later use by the cell
high energy phosphate bonds
ATP drives what for reactions
enzymes
ATP drives what which is use in transport
solute pumps
ATP drives what like muscle contractions
mechanical operation