The kinetic property of uncompetitive inhibition is: ()
A. Km is increased,Vmax is unchanged
B. Km is unchanged,Vmax is unchanged
C. Km is decreased,Vmax is decreased
D. Km is unchanged,Vmax is decreased
E. Km is increased,Vmax is decreased
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Isoenzymes are enzymes that: ()
A. catalyze the same reaction
B. have the same structure
C. have the same physiocochemical properties
D. have the same immunological properties
E. show the same electrophoretic mobility
Which of following decreases the degree of inhibition by increasing substrate concentration? ()
A. irreversible inhibition
B. competitive inhibition
C. noncompetitive inhibition
D. uncompetitive inhibition
E. not unknown
The active form of vitamin B1 in the body is: ()
A. NAD+
B. FAD
C. TPP
D. CoA
E. FMN
NADH respiratory chain has( )oxidative phosphorylation coupled site. ()
A. 1
B. 2
C. 3
D. 4
E. 5