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General Mechanism of Enzymes MCQs with Answers

Welcome to the General Mechanism of Enzymes MCQs with Answers. In this post, we have shared General Mechanism of Enzymes Online Test for different competitive exams. Find practice General Mechanism of Enzymes Practice Questions with answers in Biology Tests exams here. Each question offers a chance to enhance your knowledge regarding General Mechanism of Enzymes.

General Mechanism The general mechanism of enzymes refers to catalysis of biochemical reactions whereby the activation energies required for a reaction to occur are lowered. Enzymes are specialized proteins which catalyze chemical reactions in biological systems. This is the basis of all life processes.

Enzymes catalyze their reactions through a very specific interaction with their substrates. This starts when a substrate binds to the active site of the enzyme, the specific area of the enzyme with a shape uniquely designed to take the shape of the substrate. This produces an enzyme-substrate complex that stabilizes the reaction transition state. That is how the enzymes reduce the activation energy of the reaction. It then can occur faster than it otherwise could have.

Once this reaction gets underway the enzyme catalyses substrates into products. Those products then leave the enzyme returning it to its original state and leave it free to catalyse further reactions. This catalytic cycle can be repeated many times and therefore, enzymes are highly efficient.

Temperature, pH and other factors concerning the presence of inhibitors or activators affect enzymes. Inhibitors decrease the activity level of enzymes because they bind to the enzyme taking away the active site. Activators increase the level of enzymatic activity by improving the binding capacity of the enzyme for substrates.

Knowledge of the overall mechanism of enzymes is valuable in fields such as biochemistry, pharmacology, and biotechnology. It leads to designing enzyme-based therapies and improvements in industrial processes with the development of medicines.

General Mechanism of Enzymes Online Quiz

By presenting 3 options to choose from, General Mechanism of Enzymes Quiz which cover a wide range of topics and levels of difficulty, making them adaptable to various learning objectives and preferences. You will have to read all the given answers of General Mechanism of Enzymes Questions and Answers and click over the correct answer.

  • Test Name: General Mechanism of Enzymes MCQ Quiz Practice
  • Type: Quiz Test
  • Total Questions: 40
  • Total Marks: 40
  • Time: 40 minutes

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General Mechanism of Enzymes MCQs

General Mechanism of Enzymes

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1 / 40

Which enzyme is responsible for joining two molecules together by forming a covalent bond?

2 / 40

What are enzymes?

3 / 40

Which of the following factors can denature an enzyme?

4 / 40

What is the function of an enzyme inhibitor?

5 / 40

What is the term for the initial investment of energy required to start a chemical reaction?

6 / 40

Which class of enzymes is responsible for breaking down proteins into amino acids?

7 / 40

What is the term for the substance upon which an enzyme acts and catalyzes a reaction?

8 / 40

What is the effect of temperature on enzyme activity?

9 / 40

What is the effect of pH on enzyme activity?

10 / 40

What is the term for the molecule on which an enzyme acts?

11 / 40

Which type of inhibition involves a molecule binding to the active site, preventing substrate binding?

12 / 40

How does an enzyme affect the activation energy of a reaction?

13 / 40

What is the function of a holoenzyme?

14 / 40

What is the term for the process where an enzyme loses its shape and function due to a change in pH?

15 / 40

What is the term for a molecule that increases the rate of an enzyme-catalyzed reaction?

16 / 40

What is the main function of enzymes in biological systems?

17 / 40

What is the effect of substrate concentration on enzyme activity?

18 / 40

What is the specific region on an enzyme where the substrate binds?

19 / 40

Which type of enzyme inhibition involves a molecule binding to an allosteric site, changing the enzyme's shape?

20 / 40

What is the term for the maximum rate of an enzyme-catalyzed reaction?

21 / 40

What is the role of an allosteric site on an enzyme?

22 / 40

Which enzyme is responsible for adding phosphate groups to molecules?

23 / 40

What is the term for the specific three-dimensional shape of an enzyme's active site?

24 / 40

What is the role of the Km value in enzyme kinetics?

25 / 40

Which type of inhibition involves a molecule binding to an allosteric site on the enzyme?

26 / 40

Which type of enzyme works in both anabolic and catabolic reactions?

27 / 40

What is the role of cofactors in enzyme function?

28 / 40

What is the term for the product of an enzyme-catalyzed reaction?

29 / 40

What is the function of competitive inhibitors?

30 / 40

What is the function of the induced fit model in enzyme-substrate interactions?

31 / 40

What is the function of coenzymes in enzymatic reactions?

32 / 40

What is the name of the model that describes the interaction between an enzyme and its substrate?

33 / 40

Which enzyme is responsible for breaking down starch into maltose?

34 / 40

Which enzyme is responsible for breaking down lipids into fatty acids and glycerol?

35 / 40

Which type of enzyme inhibition can be overcome by adding more substrate?

36 / 40

What is the role of the active site on an enzyme?

37 / 40

What is the term for the process where an enzyme loses its shape and function due to extreme pH or temperature?

38 / 40

Which enzyme is responsible for breaking down nucleic acids into nucleotides?

39 / 40

Which macromolecule category do enzymes belong to?

40 / 40

Which enzyme is responsible for breaking down hydrogen peroxide into water and oxygen?

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