Chapter 6 Post-Lec Assessment

Chapter 6 Post-Lec Assessment

12th Grade

10 Qs

quiz-placeholder

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Chapter 6 Post-Lec Assessment

Chapter 6 Post-Lec Assessment

Assessment

Quiz

Chemistry

12th Grade

Medium

Created by

Driyah Dario

Used 1+ times

FREE Resource

10 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is activation energy (ΔG°‡)?

The energy needed to maintain a reaction.

The energy released during a reaction.

The minimum energy required for a chemical reaction to occur.

The energy required to break bonds in products.

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

How do catalysts affect activation energy?

They increase activation energy.

They have no effect on activation energy.

They lower activation energy.

They change the products of the reaction.

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the Michaelis constant (Kₘ)?

The energy required for the reaction to occur.

The maximum reaction rate.

The substrate concentration at which the reaction rate is half of Vmax.

The rate constant for the formation of the enzyme-substrate complex.

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What happens in zero-order kinetics?

The reaction rate depends on substrate concentration.

The reaction rate increases with substrate concentration.

The reaction rate is constant and independent of substrate concentration.

The enzyme is not saturated with substrate.

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is a competitive inhibitor?

An inhibitor that permanently inactivates the enzyme.

An inhibitor that binds to the allosteric site.

An inhibitor that binds only to the enzyme-substrate complex.

An inhibitor that binds to the active site of the enzyme.

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What effect does a noncompetitive inhibitor have on Vmax?

Vmax becomes zero.

Vmax increases.

Vmax decreases.

Vmax remains the same.

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

What is the significance of the turnover number (kcat)?

It indicates how quickly an enzyme can convert substrate to product.

It measures the maximum substrate concentration.

It determines the type of enzyme used.

It shows the energy change in a reaction.

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