Enzyme Regulation
L is the ratio of ____ to ____ and has a ______ (high/low) number
To to Ro, high
Which is the energy yielding pathway?
Catabolism
D-Isomers are when the _____ group points toward the _____ (right/left)
OH, right
Enzymes with slightly different subunits are also know as...
Isozymes
What provides the energy and reducing power for anabolism to occur?
ATP and NADPH
mirror images
In the MWC model, an activator, or positive effector, will shift the binding curve to the ______ and make it more ______
Left, hyperbolic
You have a pathway as follows,
Substrate > B > C > D > E > Product
Above each arrow is an enzyme E1 - E5. If we add an inhibitor that prevented the formation of E3, what would happen to our pathway?
We would end up with a high concentration of C
Lactose involves the addition of _______ to ______
is it an alpha or beta bond
galactose to glucose
Suppose you have a high concentration of H+ in your blood, what happens to the affinity of Oxygen for Hb. Which way does the curve shift?
O2 affinity is decreased, the curve shifts left
Define the following:
Phototrophs, Chemotroph, Chemoorganotroph, Chemolithotroph
Phototrophs: use light as energy source
Chemotrophs: use chemical compounds as energy sources
Chemoorganotrophs: use organic compounds
Chemolithotrophs: use inorganic compounds
What differs glycogen from starch?
the degree of branching
Name the parts of a deoxygenated Heme group. Where does the O2 bind and what happens?
4 N's of porphyrin ring, His F8, O2 bound to Fe, causes Fe to move toward the plane
What is the difference between gram negative and positive bacteria?
Gram-positive: One membrane phospholipid bilayer and thick peptidoglycan outer shell
Gram-negative: Two membrane phospholipid bilayers with thin peptidoglycan shell in between