©FYNDLAY EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
UMN BIOC 3021 Exam 2 (Lectures 7-12).
Questions And Answers (Guaranteed A+)
Competitive inhibitor - answer✔binds to active site
competes with substrate
will raise apparent Km
will not alter Vmax
Vmax - answer✔at high substrate, a competitive inhibitor will not alter this
non-competitive inhibitor - answer✔binds to distant site
doesn't compete with substrate
will not alter apparent Km
will alter Vmax
enantiomers - answer✔non-superimposable mirror images
epimers - answer✔stereoisomers that differ in stereochemistry at one chiral carbon (exception
is trioses)
epimer examples - answer✔erythrose and threose
glucose and galactose
2 ^# of chiral C - answer✔number of isomers
hemiacetal - answer✔aldehyde plus alcohol
beta config - answer✔one up, one down
alpha config - answer✔both up
monosaccharides - answer✔hemiacetal
1|Page
, ©FYNDLAY EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
acetal - answer✔hemiacetal plus alcohol
disaccharides - answer✔acetal
lipids - answer✔non-polar
major energy source
made of fatty acids
sparingly water soluble
increase with chain length - answer✔lipid melting point and non-polarity
unsaturated fatty acids - answer✔liquid at room temp
generally healthier
unsaturated - answer✔phospholipid bilayer tends to be
nucleoside - answer✔base and sugar
nucleotide - answer✔base and sugar and phosphate
adenine and guanine - answer✔purines
cytosine, thymine, uracil - answer✔pyrimidines
purines - answer✔two cyclic rings
pyrimidines - answer✔one cyclic ring
hydrophobic - answer✔hydrophobicity of integral membrane proteins
increases fluidity - answer✔affect of cholesterol on the membrane
lower Km - answer✔higher affinity (related to Km)
1/v vs 1/[S] - answer✔Lineweaver-Burk Plot
-1/Km - answer✔x-intercept of Lineweaver-Burk plot
1/Vmax - answer✔y-intercept of Lineweaver-Burk plot
albumin - answer✔stabilize osmotic pressure in blood
binds fatty acids during transport
most major plasma protein
2|Page
ALL RIGHTS RESERVED.
UMN BIOC 3021 Exam 2 (Lectures 7-12).
Questions And Answers (Guaranteed A+)
Competitive inhibitor - answer✔binds to active site
competes with substrate
will raise apparent Km
will not alter Vmax
Vmax - answer✔at high substrate, a competitive inhibitor will not alter this
non-competitive inhibitor - answer✔binds to distant site
doesn't compete with substrate
will not alter apparent Km
will alter Vmax
enantiomers - answer✔non-superimposable mirror images
epimers - answer✔stereoisomers that differ in stereochemistry at one chiral carbon (exception
is trioses)
epimer examples - answer✔erythrose and threose
glucose and galactose
2 ^# of chiral C - answer✔number of isomers
hemiacetal - answer✔aldehyde plus alcohol
beta config - answer✔one up, one down
alpha config - answer✔both up
monosaccharides - answer✔hemiacetal
1|Page
, ©FYNDLAY EXAM SOLUTIONS 2024/2025
ALL RIGHTS RESERVED.
acetal - answer✔hemiacetal plus alcohol
disaccharides - answer✔acetal
lipids - answer✔non-polar
major energy source
made of fatty acids
sparingly water soluble
increase with chain length - answer✔lipid melting point and non-polarity
unsaturated fatty acids - answer✔liquid at room temp
generally healthier
unsaturated - answer✔phospholipid bilayer tends to be
nucleoside - answer✔base and sugar
nucleotide - answer✔base and sugar and phosphate
adenine and guanine - answer✔purines
cytosine, thymine, uracil - answer✔pyrimidines
purines - answer✔two cyclic rings
pyrimidines - answer✔one cyclic ring
hydrophobic - answer✔hydrophobicity of integral membrane proteins
increases fluidity - answer✔affect of cholesterol on the membrane
lower Km - answer✔higher affinity (related to Km)
1/v vs 1/[S] - answer✔Lineweaver-Burk Plot
-1/Km - answer✔x-intercept of Lineweaver-Burk plot
1/Vmax - answer✔y-intercept of Lineweaver-Burk plot
albumin - answer✔stabilize osmotic pressure in blood
binds fatty acids during transport
most major plasma protein
2|Page
