Principles of Bioenergetics and Glycolysis MCQs

Welcome to our comprehensive collection of Multiple Choice Questions (MCQs) on Principles of Bioenergetics and Glycolysis, a fundamental topic in the field of Biochemistry. Whether you're preparing for competitive exams, honing your problem-solving skills, or simply looking to enhance your abilities in this field, our Principles of Bioenergetics and Glycolysis MCQs are designed to help you grasp the core concepts and excel in solving problems.

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Principles of Bioenergetics and Glycolysis MCQs | Page 9 of 23

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Q81.
The relationship between K‘eq and ∆G‘° is

a.

∆G‘° = RTlnK‘eq

b.

∆G‘° = -RTK‘eq

c.

∆G‘° = RK‘eq

d.

∆G‘° = -RK‘eq

Discuss
Answer: (b).∆G‘° = -RTK‘eq
Q82.
What does first law of thermodynamics state?

a.

Energy can neither be destroyed nor created

b.

Energy cannot be 100 percent efficiently transformed from one type to another

c.

All living organisms are composed of cells

d.

Input of heat energy increases the rate of movement of atoms and molecules

Discuss
Answer: (a).Energy can neither be destroyed nor created
Q83.
If ∆G‘° of the reaction A → B is -40kJ/mol under standard conditions then the reaction

a.

Will never reach equilibrium

b.

Will not occur spontaneously

c.

Will proceed at a rapid rate

d.

Will proceed from left to right spontaneously

Discuss
Answer: (d).Will proceed from left to right spontaneously
Q84.
What is the relationship between ∆G and ∆G‘°?

a.

∆G = ∆G‘° + RTln([products]/[reactants])

b.

∆G = ∆G‘° – RTln([products]/[reactants])

c.

∆G = ∆G‘° + RTln([reactants]/[products])

d.

∆G = ∆G‘° – RTln([reactants]/[products])

Discuss
Answer: (a).∆G = ∆G‘° + RTln([products]/[reactants])
Q85.
Which of the following statements is false?

a.

The reaction tends to go in the forward direction if ∆G is large and positive

b.

The reaction tends to move in the backward direction if ∆G is large and negative

c.

The system is at equilibrium if ∆G = 0

d.

The reaction tends to move in the backward direction if ∆G is large and positive

Discuss
Answer: (d).The reaction tends to move in the backward direction if ∆G is large and positive
Q86.
Anabolism and catabolism are chemically linked in the form of

a.

ADP

b.

ATP

c.

Phosphodiester linkage

d.

ASP

Discuss
Answer: (b).ATP
Q87.
Which of the following statements is false about ATP hydrolysis?

a.

It is highly exergonic

b.

Activation energy is relatively high

c.

∆G‘°=-30.5kJ/mol

d.

∆G‘°=30.5kJ/mol

Discuss
Answer: (d).∆G‘°=30.5kJ/mol
Q88.
An endergonic reaction

a.

Proceeds spontaneously

b.

Does not require activation energy

c.

Releases energy

d.

Requires energy

Discuss
Answer: (d).Requires energy
Q89.
An exergonic reaction

a.

Proceeds spontaneously

b.

Does not require activation energy

c.

Releases energy

d.

Requires energy

Discuss
Answer: (c).Releases energy
Q90.
Phosphoryl groups are derivatives of

a.

Phosphorous acid

b.

Phosphoric acid

c.

Acetic acid

d.

Citric acid

Discuss
Answer: (b).Phosphoric acid
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