BIO 2100 Exam #1 Questions With Complete Solutions
Are cis or trans bonds present in membrane lipids? Why?
Correct Answers Cis bonds because they cause more kink thus
increases the fluidity more
Can the quaternary structure contain components other than
polypeptides? Correct Answers Yes (ex. carbohydrates)
Define a condensation/dehydration reaction Correct Answers
synthesizing a polymer with the use of a water molecule
Define a protein Correct Answers fully functional molecule
composed of one or several polypeptides
Define activation energy Correct Answers energy needed to
start a chemical reaction
Define amphipathic Correct Answers A molecule that has both
a hydrophilic region and a hydrophobic region.
Define endergonic Correct Answers reaction that requires
energy
Define entropy Correct Answers a measure of the disorder of a
system
Define enzyme Correct Answers Proteins that function as
biological catalysts (speeds up reaction in living cells)
Define exergonic Correct Answers energy releasing
, Define free energy Correct Answers energy available to do
work
Define hydrolysis Correct Answers breaking down a polymer
with water
Define Km Correct Answers substrate concentration when V =
1/2 Vmax
Define lipids Correct Answers organic compounds that are
insoluble in water
Define monomer Correct Answers single subunit
Define peptide Correct Answers two or more amino acids
bonded together (shorter polymer)
Define polymer Correct Answers many monomers linked
together
Define polypeptide chain Correct Answers single, unbranched
chain of amino acids (full length chain)
Define residue Correct Answers monomers when they are part
of a polymer
Define Vmax Correct Answers Maximum reaction rate, when
enzymes become saturated with substrate
Are cis or trans bonds present in membrane lipids? Why?
Correct Answers Cis bonds because they cause more kink thus
increases the fluidity more
Can the quaternary structure contain components other than
polypeptides? Correct Answers Yes (ex. carbohydrates)
Define a condensation/dehydration reaction Correct Answers
synthesizing a polymer with the use of a water molecule
Define a protein Correct Answers fully functional molecule
composed of one or several polypeptides
Define activation energy Correct Answers energy needed to
start a chemical reaction
Define amphipathic Correct Answers A molecule that has both
a hydrophilic region and a hydrophobic region.
Define endergonic Correct Answers reaction that requires
energy
Define entropy Correct Answers a measure of the disorder of a
system
Define enzyme Correct Answers Proteins that function as
biological catalysts (speeds up reaction in living cells)
Define exergonic Correct Answers energy releasing
, Define free energy Correct Answers energy available to do
work
Define hydrolysis Correct Answers breaking down a polymer
with water
Define Km Correct Answers substrate concentration when V =
1/2 Vmax
Define lipids Correct Answers organic compounds that are
insoluble in water
Define monomer Correct Answers single subunit
Define peptide Correct Answers two or more amino acids
bonded together (shorter polymer)
Define polymer Correct Answers many monomers linked
together
Define polypeptide chain Correct Answers single, unbranched
chain of amino acids (full length chain)
Define residue Correct Answers monomers when they are part
of a polymer
Define Vmax Correct Answers Maximum reaction rate, when
enzymes become saturated with substrate
