BIOCHEMISTRY EXAM 3 METABOLISM
2026/2027 WITH 160 QUESTIONS AND
VERIFIED CORRECT ANSWERS |
ALREADY GRADED A+ | GUARANTEED
PASS | BIOCHEMISTRY LATEST EXAM
[BRAND NEW]
The coupling of energy allows:
Select one:
a. An endergonic reaction to proceed forward
b. Nonspontaneous reactions to occur in the forward direction
c. Utilizing exergonic reaction to do useful work
d. A, B, and C
e. None of the above - ANSWER-d. A, B, and C
Which of the following has the highest free energy yield?
Select one:
a. ADP --> AMP + Pi
b. Glucose-6-phosphate --> Glucose + Pi
,c. Fructose-1,6-biphosphate --> Fructose-6-phosphate + Pi
d. Phosphoenol pyruvate --> pyruvate + Pi
e. All have the same free energy yield - ANSWER-d. Phosphoenol pyruvate -->
pyruvate + Pi
Consider the following phosphate transfer reaction that is exergonic under standard
conditions:
A~P + B → B~P + A
The standard free energy for A~P → A + Pi is -25.6 kj/mol
What can be predicted for the standard free energy of: B + Pi --> B~P ?
Select one:
a. -25.6 kj/mol
b. -12.0 kj/mol
c. +12.0 kj/mol
d. +25.6 kj/mol
e. None of the above - ANSWER-c. +12.0 kJ/mol
The reduction potential is a measure of:
Select one:
a. The affinity of a conjugate acid for its conjugate base
b. The affinity of a conjugate base for a proton
c. The affinity of a reductant for its electrons
,d. The free energy change of a redox reaction
e. None of the above
Feedback - ANSWER-c. The affinity of a reductant for its electrons
When mixing two redox pairs:
Select one:
a. The stronger reductant has a higher affinity for the electrons
b. The stronger oxidant has a higher affinity for the electrons
c. The stronger reductant will gain electrons
d. The stronger oxidant will lose electrons - ANSWER-b. The stronger oxidant has
a higher affinity for the electrons
The tendency for electrons to flow towards the stronger oxidant is called the:
Select one:
a. Reduction potential
b. Equilibrium constant
c. Electromotive force
d. Conjugate pair
e. None of the above - ANSWER-c. Electromotive force
In the formation of water from methane and oxygen:
Select one:
a. Carbon becomes oxidized
b. Hydrogen becomes reduced
c. Oxygen becomes oxidized
, d. Energy is required
e. All of the above - ANSWER-a. Carbon becomes oxidized
Which is true for the following reaction? CH4 + 2 O2 <----> CO2 + 2 H2O
Select one:
a. Molecular oxygen is the reductant
b. Methane is the oxidant
c. Molecular oxygen becomes reduced
d. All of the above
Feedback - ANSWER-c. Molecular oxygen becomes reduced
Phophofructokinase-1 (PFK-1) is an allosteric enzyme. Its activity is inhibited by:
Select one:
a. AMP
b. ATP
c. NAD+
d. glucose
e. All of the above - ANSWER-b. ATP
Phosphate release (hydrolysis) reactions in carbohydrates are-
Select one:
a. Exergonic under standard conditions
2026/2027 WITH 160 QUESTIONS AND
VERIFIED CORRECT ANSWERS |
ALREADY GRADED A+ | GUARANTEED
PASS | BIOCHEMISTRY LATEST EXAM
[BRAND NEW]
The coupling of energy allows:
Select one:
a. An endergonic reaction to proceed forward
b. Nonspontaneous reactions to occur in the forward direction
c. Utilizing exergonic reaction to do useful work
d. A, B, and C
e. None of the above - ANSWER-d. A, B, and C
Which of the following has the highest free energy yield?
Select one:
a. ADP --> AMP + Pi
b. Glucose-6-phosphate --> Glucose + Pi
,c. Fructose-1,6-biphosphate --> Fructose-6-phosphate + Pi
d. Phosphoenol pyruvate --> pyruvate + Pi
e. All have the same free energy yield - ANSWER-d. Phosphoenol pyruvate -->
pyruvate + Pi
Consider the following phosphate transfer reaction that is exergonic under standard
conditions:
A~P + B → B~P + A
The standard free energy for A~P → A + Pi is -25.6 kj/mol
What can be predicted for the standard free energy of: B + Pi --> B~P ?
Select one:
a. -25.6 kj/mol
b. -12.0 kj/mol
c. +12.0 kj/mol
d. +25.6 kj/mol
e. None of the above - ANSWER-c. +12.0 kJ/mol
The reduction potential is a measure of:
Select one:
a. The affinity of a conjugate acid for its conjugate base
b. The affinity of a conjugate base for a proton
c. The affinity of a reductant for its electrons
,d. The free energy change of a redox reaction
e. None of the above
Feedback - ANSWER-c. The affinity of a reductant for its electrons
When mixing two redox pairs:
Select one:
a. The stronger reductant has a higher affinity for the electrons
b. The stronger oxidant has a higher affinity for the electrons
c. The stronger reductant will gain electrons
d. The stronger oxidant will lose electrons - ANSWER-b. The stronger oxidant has
a higher affinity for the electrons
The tendency for electrons to flow towards the stronger oxidant is called the:
Select one:
a. Reduction potential
b. Equilibrium constant
c. Electromotive force
d. Conjugate pair
e. None of the above - ANSWER-c. Electromotive force
In the formation of water from methane and oxygen:
Select one:
a. Carbon becomes oxidized
b. Hydrogen becomes reduced
c. Oxygen becomes oxidized
, d. Energy is required
e. All of the above - ANSWER-a. Carbon becomes oxidized
Which is true for the following reaction? CH4 + 2 O2 <----> CO2 + 2 H2O
Select one:
a. Molecular oxygen is the reductant
b. Methane is the oxidant
c. Molecular oxygen becomes reduced
d. All of the above
Feedback - ANSWER-c. Molecular oxygen becomes reduced
Phophofructokinase-1 (PFK-1) is an allosteric enzyme. Its activity is inhibited by:
Select one:
a. AMP
b. ATP
c. NAD+
d. glucose
e. All of the above - ANSWER-b. ATP
Phosphate release (hydrolysis) reactions in carbohydrates are-
Select one:
a. Exergonic under standard conditions
