WGU Biochemistry OA Questions and
Answers 100% Pass
Bohr Effect chart (low pH) ✔✔C- High CO2
H- High H+
A- Acidic
R-Release of O2(rt. Shift)
T- tense state (in tissues)
Primary structure ✔✔Sequence of amino acids that make up a protein
Secondary Structure ✔✔Sequence of amino acids fold.
Tertiary Structure ✔✔-more folding in a 3D shape.
-R groups (side chains)
Quaternary Structure ✔✔Protein has more than 1 polypeptide chain.
Chemical reaction ✔✔-absorb and release energy
-activation energy
-energy is released (heat & light) when bonds are broken.
,Exothermic reaction ✔✔Exo=to release
Thermo=heat
-chemical reaction that releases more energy than it absorbs (as heat & light)
Example of exothermic reaction ✔✔Cellular respiration- breaks down glucose to make cellular
energy
Endothermic reaction ✔✔Endo=absorb
Thermos=heat
-absorbs more energy than it releases
Example of endothermic reaction ✔✔Photosynthesis- takes in light to break down to create
glucose
Catalyst ✔✔Substance that will decrease the activation energy needed to start a chemical reaction
Enzymes ✔✔-catalysts used by cells
-increase the rate of chemical reaction
-specific to substrates
Enzyme structure ✔✔-they are proteins
-twist, fold, bend to final shape
, -shape attracts specific molecules
Substrate ✔✔Molecules that bind to the enzyme
Active site ✔✔-location on enzyme where substrate binds
Function of DNA polymerase in process of PCR. ✔✔-increase expression
-2 genes
-SIRT1 & SIRT2
Function of a molecule ✔✔Structural component of the lipid bilayer
How would lipid production in a cell change in order to maintain fluidity of its cell membrane as
it adapts to lower temperatures? ✔✔Produce lipids with shorter fatty acid chains
Function of cholesterol ✔✔Maintains membrane fluidity
Lipid (fat) soluble vitamins ✔✔A, D, E, K
What stimulates beta-oxidation of fatty acids? ✔✔An increase in NAD+ concentration in the
mitochondrial matrix
Answers 100% Pass
Bohr Effect chart (low pH) ✔✔C- High CO2
H- High H+
A- Acidic
R-Release of O2(rt. Shift)
T- tense state (in tissues)
Primary structure ✔✔Sequence of amino acids that make up a protein
Secondary Structure ✔✔Sequence of amino acids fold.
Tertiary Structure ✔✔-more folding in a 3D shape.
-R groups (side chains)
Quaternary Structure ✔✔Protein has more than 1 polypeptide chain.
Chemical reaction ✔✔-absorb and release energy
-activation energy
-energy is released (heat & light) when bonds are broken.
,Exothermic reaction ✔✔Exo=to release
Thermo=heat
-chemical reaction that releases more energy than it absorbs (as heat & light)
Example of exothermic reaction ✔✔Cellular respiration- breaks down glucose to make cellular
energy
Endothermic reaction ✔✔Endo=absorb
Thermos=heat
-absorbs more energy than it releases
Example of endothermic reaction ✔✔Photosynthesis- takes in light to break down to create
glucose
Catalyst ✔✔Substance that will decrease the activation energy needed to start a chemical reaction
Enzymes ✔✔-catalysts used by cells
-increase the rate of chemical reaction
-specific to substrates
Enzyme structure ✔✔-they are proteins
-twist, fold, bend to final shape
, -shape attracts specific molecules
Substrate ✔✔Molecules that bind to the enzyme
Active site ✔✔-location on enzyme where substrate binds
Function of DNA polymerase in process of PCR. ✔✔-increase expression
-2 genes
-SIRT1 & SIRT2
Function of a molecule ✔✔Structural component of the lipid bilayer
How would lipid production in a cell change in order to maintain fluidity of its cell membrane as
it adapts to lower temperatures? ✔✔Produce lipids with shorter fatty acid chains
Function of cholesterol ✔✔Maintains membrane fluidity
Lipid (fat) soluble vitamins ✔✔A, D, E, K
What stimulates beta-oxidation of fatty acids? ✔✔An increase in NAD+ concentration in the
mitochondrial matrix
