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.
If enthalpy change for a reaction is zero, then ∆G° equals to

a.

-T∆S°

b.

T∆S°

c.

-∆H°

d.

lnkeq

Discuss
Answer: (a).-T∆S°
Q82.
∆G° is defined as the

a.

Residual energy present in the reactants at equilibrium

b.

Residual energy present in the products at equilibrium

c.

Difference in the residual energy of reactants and products at equilibrium

d.

Energy required in converting one mole of reactants to one mole of products

Discuss
Answer: (d).Energy required in converting one mole of reactants to one mole of products
Q83.
For a reaction if ∆G° is positive, then

a.

The products will be favored

b.

The reactants will be favored

c.

The concentration of the reactants and products will be equal

d.

All of the reactant will be converted to products

Discuss
Answer: (b).The reactants will be favored
Q84.
Unfolding of regular secondary protein structure causes

a.

Large decrease in the entropy of the protein

b.

Little increase in the entropy of protein

c.

No change in the entropy of the protein

d.

Large increase in the entropy of the protein

Discuss
Answer: (d).Large increase in the entropy of the protein
Q85.
The study of energy relationships and conversions in biological systems is called as

a.

Biophysics

b.

Biotechnology

c.

Bioenergetics

d.

Microbiology

Discuss
Answer: (c).Bioenergetics
Q86.
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
Q87.
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
Q88.
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
Q89.
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])
Q90.
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
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