WorksheetsAP Biochemistry Test Review
Total questions: 98
Worksheet time: 49mins
Name
Class
Date
1.
the location on the enzyme where the substrate binds and goes through a chemical reaction.
a)
enzyme-substrate complex
b)
active site
c)
intermediate
d)
L-Z
2.
An inward force that tends to minimize the surface area of a liquid; increases the difficulty of breaking the surface of a liquid.
a)
surface tension
b)
adhesion
c)
capillary action
d)
inertia
3.
chemically, a substance that absorbs hydrogen ions or releases hydroxyl ions; in reference to natural water, a measure of the base content of the water.
a)
acidic, acid
b)
alkaline, base
c)
cation, +
d)
metal, +
4.
Enzyme that can break the polypeptide bonds of proteins to form the monomer, amino acids.
a)
peptase
b)
aminiase
c)
protease
d)
lipase
5.
a macromolecule consisting of one or more polypeptides chains made up amino acids folded and coiled into a specific three-dimensional structure. Hemoglobin and collagen.
a)
polysaccharide
b)
amino acid
c)
fatty acid
d)
protein
6.
a)
Triglyceride structure
b)
amino acid structure
c)
phospholipid structure
d)
RNA structure
7.
Enzyme that can break the bonds of starch to form the carbohydrate monomer, glucose.
a)
glutease
b)
amylase
c)
carbylase
d)
monolase
8.
a structural polysaccharide of plant cell walls, consisting of glucose monomers. A type of plant starch.
a)
chitin
b)
amylose
c)
glycogen
d)
cellulose
9.
the form of native DNA, referring to its two adjacent antiparallel polynucleotide strands wound around an imaginary axis into a spiral shape.
a)
a-helix
b)
b-pleat
c)
globular
d)
double helix
10.
PO4
a)
thiol group
b)
butyl group
c)
phosphate group
d)
potassium group
11.
A process powered by adhesion that causes water molecules to move upward through a narrow tube such as the stem of a plant.
a)
surface tension
b)
capillary action
c)
hydrolocomotion
d)
cohesive attraction
12.
a sugar (monosaccharide /disaccharides) or one of it's polymers (polysaccharides). Primarily C, H and O.
a)
nucleotide
b)
carbohydrate
c)
carboxylic acid
d)
glycerol
13.
a)
amino acid structure
b)
carboxyl structure
c)
carbonyl structure
d)
nucleotide
14.
An agent that speeds up a chemical reaction without itself being permanently altered
a)
monomer
b)
catalyst
c)
polymer
d)
reactant
15.
compounds that enter into a chemical reaction
a)
reactants
b)
catalysts
c)
products
d)
enzymes
16.
A negatively charged ion
a)
anion
b)
cation
c)
isotope
d)
electron
17.
A positively charged ion
a)
enantiomer
b)
cation
c)
anion
d)
isotopes
18.
a double sugar, consisting of two monosaccharides joined by a glycosidic linkage formed by a dehydration reaction.
a)
disaccharide
b)
cellulose
c)
polysaccharide
d)
glycogen
19.
The animal equivalent of starch. An extensively branched glucose storage polysaccharide found in the liver and muscle
a)
glycogen
b)
cellulose
c)
amylose
d)
chitin
20.
A non protein organic molecule serving to modify the active site of an enzyme before the reaction is allowed to occur. Most vitamins function important metabolic reactions in this role.
a)
inhibitor
b)
coenzyme
c)
substrate
d)
enantiomer
21.
a chemical that binds to an enzyme but not in the active site. This chemical will change the shape of the enzyme (reversible)
a)
competitive inhibitor
b)
coenzyme
c)
noncompetitive inhibitor
d)
enantiomer
22.
the substance an enzyme catalyzes, changes.
a)
active site
b)
coenzyme
c)
substrate
d)
catalase
23.
The attraction of unlike molecules - typically involving hydrogen bonds..
a)
adhesion
b)
cohesion
c)
hydrophobic
d)
surface tension
24.
Linking together of like molecules - typically with hydrogen bonds.
a)
hydrophilic
b)
cohesion
c)
adhesion
d)
van der waals
25.
substance that resembles the normal substrate competes with the substrate for the active site
a)
noncompetitve inhibition
b)
competitive inhibition
c)
coenzyme
d)
amphipathic
26.
Bonds created by sharing electrons with other atoms.
a)
ionic bonds
b)
covalent bonds
c)
van der waals
d)
sulfide bridge
27.
Bonds between atoms that are created by the transference of electrons.
a)
hydrogen bonds
b)
covalent bonds
c)
ionic bonds
d)
polar bonds
28.
a chemical reaction in which two molecules become covalently bonded to each other with the removal of a water molecule.
a)
dehydration synthesis
b)
decomposition
c)
hydrolysis
d)
replacement
29.
To alter the shape of a protein causing it to cease functioning as designed.
a)
denature
b)
dehydrate
c)
catalyze
d)
hydrolize
30.
A chemical reaction that breaks down compounds into simpler products.
a)
condensation
b)
dehydration
c)
replacement
d)
decomposition
31.
the sugar component of DNA nucleotides, having one fewer hydroxyl group than the sugar component of RNA nucleotides.
a)
ribose
b)
deoxyribose
c)
adenosine
d)
phosphate
32.
the amount of energy required to change a 1 g of a substance from the solid phase to the liquid phase.
a)
specific heat
b)
disassociative heat
c)
heat of fusion
d)
heat of vaporization
33.
a single stranded molecule used for the transmission transmission of genetic information used in protein synthesis.
a)
ATP
b)
DNA
c)
RSVP
d)
RNA
34.
the subunit that serves as the building block of a polymer.
a)
atom
b)
element
c)
monomer
d)
compound
35.
a polymer of many monosaccharides, formed by dehydration reactions.
a)
glycerol
b)
enantiomer
c)
polysaccharide
d)
isotope
36.
a chemical reaction where energy is given off, so that the products have less energy than the reactants.
a)
entropy
b)
endothermic reaction
c)
enthalpy
d)
exothermic reaction
37.
The temperature at which a liquid changes to a gas
a)
boiling point
b)
enthalpy
c)
entropy
d)
specific heat
38.
biological catalysts (globular proteins) usually that speed up the rate of chemical reactions
a)
monomer
b)
enzyme
c)
reactant
d)
polymer
39.
Regulating variable that produces similar reaction rate curves for all enzymes.
a)
pH
b)
enzyme concentration
c)
substrate concentration
d)
temperature
40.
the structure that is made up of the substrate bonded to the active site of the enzyme.
a)
quaternary structure
b)
enzyme-substrate complex
c)
tertiary structure
d)
active sites
41.
The shape of the active site of an enzyme is specific and complementary to the shape of the substrate on which it acts. .
a)
enzymatic theory
b)
enzyme-substrate complex
c)
amphipathic structure
d)
lock and key model
42.
The temperature at which a liquid changes into a solid
a)
heat of fusion
b)
evaporative cooling
c)
freezing point
d)
heat of condensation
43.
a chemical reaction where energy is taken in, so that the products have more energy than the reactants.
a)
endothermic reaction
b)
exothermic reaction
c)
catalytic reaction
d)
thermal coupling
44.
a lipid consisting of three fatty acids lined to one glycerol molecule; also called a triacylglycerol or triglyceride. Function as energy storage.
a)
hormone
b)
fat/oil
c)
steroid
d)
glycogen
45.
an organic molecule possessing both a carboxyl and an amino group. The monomers of polypeptides. There are 20 different forms. Distinguished by side chains.
a)
organic acid
b)
fatty acid
c)
triglyceride
d)
amino acid
46.
a storage polysaccharide in plants, consisting entirely of glucose monomers. Used for energy storage.
a)
starch
b)
glycogen
c)
lipid
d)
cellulose
47.
functions as storage, transmission & use of genetic material
a)
proteins
b)
glycogen
c)
nucleic acids
d)
hormones
48.
the energy required to initiate a reaction.
a)
activation energy
b)
heat of fusion
c)
specific heat
d)
entropy
49.
the amount of thermal energy that must be absorbed or lost for 1 g of a substance to be changed 1 degree C.
a)
Heat capacity/specific heat
b)
heat of vaporization
c)
heat of fusion
d)
activation energy
50.
The process in which the surface of an object becomes cooler during evaporation, owing to a change of the molecules with the greatest kinetic energy from the liquid to the gaseous state.
a)
evaporative cooling
b)
heat of vaporization
c)
enthalpy
d)
isothermics
51.
A chemical reaction in which two or more simple substances combine to form a new, more complex substance.
a)
synthesis
b)
hydrolysis
c)
decomposition
d)
replacement
52.
A reaction in which one element replaces another in a compound or when two elements in different compounds trade places
a)
replacement
b)
hydrolysis
c)
dehydration
d)
condensation
53.
a type of weak chemical interaction between molecules causing substance to be insoluble in water.
a)
hydrophobic
b)
hydrophilic
c)
van der waals
d)
sulfide bridge
54.
No partial charges. Not soluble in water. Equal sharing
a)
polar
b)
hydrophilic
c)
enantiomer
d)
nonpolar
55.
Very weak bonds; occurs when atoms in a polar covalent molecule are attracted to another atom of a polar covalent bond, typically carbon.
a)
hydrogen bonds
b)
hydrophilic bonds
c)
polar attractions
d)
active sites
56.
Substance dissolved in a solution.
a)
solvent
b)
hydrophobe
c)
monomer
d)
solute
57.
H+, acids
a)
hydrogen ions
b)
hydroxide ions
c)
ionic bonds
d)
isotopes
58.
OH-, bases
a)
hydrogen ions
b)
hydroxide ions
c)
hydronium ions
d)
cations
59.
the linkage between amino acids forming a covalent bond between the carboxyl group on one amino acid and the amino group on another, formed by a dehydration reaction.
a)
hydrogen bonds
b)
ionic bond
c)
sulfide bridge
d)
peptide bond
60.
Charged atoms caused by an imbalance of electrons and protons
a)
ions
b)
isotopes
c)
radicals
d)
functional groups
61.
a)
protein structure
b)
lipid structure
c)
glucose structure
d)
nucleic acid structure
62.
energy source & structure support; examples: simple sugars, and complex polysaccharides, structural support examples: cell wall in plant cells, chitin in insects.
a)
proteins
b)
lipids
c)
carbohydrates
d)
nucleic acids
63.
a large compound formed by the joining of smaller molecules(subunit), usually by a dehydration chemical reaction.
a)
monomer
b)
macromolecule
c)
jumboliah
d)
grande mole
64.
COOH
a)
aldehyde
b)
methyl group
c)
ketone
d)
carboxyl group
65.
the building block of a nucleic acid, consisting of a five-carbon sugar covalently bonded to a nitrogen base and one or more phosphate groups.
a)
nucleotide
b)
monosaccharide
c)
amino acid
d)
glycerol and fatty acids
66.
the simplest carbohydrate, active alone or serving as a monomer for disaccharides and polysaccharides. Also called simple sugars, they have formulas that are generally some multiple of CH2O
a)
sucrose
b)
monosaccharide
c)
starch
d)
glycogen
67.
A covalent bond between atoms that differ in electronegativity. The shared electrons are pulled closer to the more electronegative atom, making it slightly negative and the other atom slightly positive.
a)
polar covalent bond
b)
nonploar bond
c)
hydrophobic bond
d)
hydrophilic nd
68.
Molecule with partial charges. Unequal sharing. Soluble in water.
a)
hydrophobic
b)
nonpolar
c)
polar
d)
solute
69.
Enzyme that can break the bonds of nucleic acids to form its monomer.
a)
catalase
b)
nuclease
c)
protease
d)
amylase
70.
any of a group of large, hydrophobic biological molecules, including fats, phospholipids, and steroids. No true monomers but consists of glycerol and fatty acids.
a)
polysaccharides
b)
nucleic acids
c)
lipids
d)
triglycerides
71.
a polymer of many amino acids linked together by peptide bonds.
a)
polysaccharide
b)
nucleotide
c)
fatty acid
d)
polypeptide
72.
a lipid characterized by a carbon skeleton consisting of four fused rings with various chemical groups attached. Function as hormones.
a)
hormone
b)
oil
c)
fatty acid
d)
steroid
73.
a polymer consisting of many nucleotide monomers; serves as a blueprint for proteins and all cellular activities. Three part monomer - sugar, phosphate and nitrogen base.
a)
lipid
b)
organic acid
c)
polypeptide
d)
nucleic acid
74.
an enzyme found in most aerobic organisms that breaks down H2O2 to water and oxygen
a)
amylase
b)
oxidase
c)
lactase
d)
catalase
75.
Attraction of an atom for the electrons of a covalent bond.
a)
electronegativity
b)
polarity
c)
solubility
d)
pH
76.
NH2
a)
nicotine group
b)
polypeptide group
c)
peptide group
d)
amino group
77.
a carboxylic acid with a long carbon chain. Vary in length and may link to a glycerol molecule forming a triglyceride.
a)
amino acid
b)
polysaccharide
c)
nucleic acid
d)
fatty acid
78.
hormones & steroids
a)
carbohydrates
b)
proteins
c)
lipids
d)
nucleic acids
79.
a)
nucleic acid structure
b)
quaternary protein structure
c)
phopholipid structure
d)
triglyceride structure
80.
Pertains to a molecule containing (1) both polar and nonpolar portions in its structure or (2) both hydrophobic and hydrophilic regions in its structure.
a)
bipolar
b)
quaternary structure
c)
amphipathic
d)
coenzyme
81.
A substance that decreases the hydrogen ion concentration in a solution.
a)
acid
b)
salt
c)
base
d)
buffer
82.
A substance that increases the hydrogen ion concentration of a solution.
a)
base
b)
salt
c)
buffer
d)
acid
83.
a lipid made up of glycerol joined to two fatty acids and a phosphate group. . They form bilayers that function as biological membranes.
a)
triglyceride
b)
saturated fat
c)
phospholipid
d)
unsaturated fat
84.
Amino acids of the polypeptides of a protein are folded. alpha helix and/or beta pleated sheet are present
a)
primary structure
b)
seconadry structure
c)
tertiary structure
d)
quaternary structure
85.
multi-folded polypeptides bonded via non-covalent bonds. The protein structure that results from the aggregation of several peptide units.
a)
primary structure
b)
secondary structure
c)
tertiary structure
d)
quaternary structure
86.
Formed by the bonding between side chains of alpha helices or beta sheets. Known as globular proteins. Held together by ionic bonds. hydrophobic interaction and Van der Walls interaction
a)
primary structue
b)
secondary structure
c)
tertiary structure
d)
quaternary structure
87.
The most important characteristic of a protein/enzyme.
a)
functional groups
b)
shape
c)
number of double bonds
d)
polarity
88.
having a tendency to mix with, dissolve in, or be wetted by water.
a)
hydrophilic
b)
solute
c)
solvent
d)
hydrophobic
89.
Dissolving agent of a solution.
a)
solute
b)
solvent
c)
acid
d)
base
90.
A solution that minimizes changes in pH when extraneous acids or bases are added to the solution.
a)
enantiomer
b)
solvent
c)
alkyl
d)
buffer
91.
The amount of energy a liquid must absorb for 1 g to be converted to a gas.
a)
heat of vaporization
b)
specific heat
c)
activation energy
d)
evaporative cooling
92.
Variable regulating enzyme activity exhibited in the graph.
a)
pH
b)
substrate concentration
c)
temperature
d)
enzyme concentration
93.
compounds produced by a chemical reaction.
a)
reactants
b)
substrates
c)
product
d)
buffers
94.
a chemical reaction that breaks bonds between two molecules by the addition of water; functions in dis-assembly of polymers to monomers.
a)
dehydration
b)
synthesis
c)
hydration
d)
hydrolysis
95.
A measure of the average energy of motion of the particles of a substance.
a)
velocity
b)
temperature
c)
enthalpy
d)
entropy
96.
a double-stranded helix capable of being replicated and determining the inherited structure of a cell's proteins.
a)
a-helix
b)
tertiary structure
c)
DNA
d)
polysaccharide
97.
the amino acid sequence of the polypeptide chain
a)
quaternary structure
b)
tertiary structure
c)
secondary structure
d)
primary structure
98.
The process by which water is lost through a plant's leaves
a)
evaporative cooling
b)
transpiration
c)
heat of fusion
d)
heat of vaporization
100 %
