Biochemistry

Enzymes MCQs with Answers

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

Enzymes are biological catalysts that accelerate chemical reactions in living organisms without being consumed in the process. These essential proteins play a critical role in virtually all biochemical processes, including metabolism, DNA replication, and cellular signaling. By lowering the activation energy required for reactions, enzymes facilitate complex biochemical transformations, making life-sustaining processes efficient and regulated.

Each enzyme is highly specific to its substrate, meaning it only catalyzes a particular reaction or set of reactions. This specificity is determined by the enzyme’s unique active site, where substrates bind and undergo transformation. For example, digestive enzymes like amylase and protease help break down carbohydrates and proteins, respectively, into their component molecules for absorption in the digestive tract.

Enzyme activity can be influenced by various factors, including temperature, pH, and the presence of inhibitors or activators. Inhibitors can decrease enzyme activity, while activators can enhance it. Understanding these interactions is crucial for applications in medicine, biotechnology, and industry.

In medicine, enzymes are used in diagnostic tests, enzyme replacement therapies, and drug development. In biotechnology, enzymes are employed in processes like fermentation and biofuel production. Industrial applications include using enzymes in detergents, food processing, and textile manufacturing.

Research into enzyme mechanisms and applications continues to advance our knowledge and expand the use of enzymes in diverse fields, making them indispensable tools in science and industry.

Enzymes Online Quiz

By presenting 3 options to choose from, 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 Enzymes Questions and Answers and click over the correct answer.

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

Note: Answer of the questions will change randomly each time you start the test. Practice each quiz test at least 3 times if you want to secure High Marks. Once you are finished, click the View Results button. If any answer looks wrong to you in Quizzes. simply click on question and comment below that question. so that we can update the answer in the quiz section.

0
Enzymes MCQs

Enzymes

Please fill out the form before starting Quiz.

1 / 40

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

2 / 40

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

3 / 40

What is the function of a holoenzyme?

4 / 40

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

5 / 40

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

6 / 40

What is the function of competitive inhibitors?

7 / 40

What is the function of an enzyme inhibitor?

8 / 40

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

9 / 40

Which enzyme is responsible for adding phosphate groups to molecules?

10 / 40

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

11 / 40

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

12 / 40

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

13 / 40

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

14 / 40

Which macromolecule category do enzymes belong to?

15 / 40

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

16 / 40

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

17 / 40

What is the effect of temperature on enzyme activity?

18 / 40

Which enzyme is responsible for breaking down starch into maltose?

19 / 40

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

20 / 40

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

21 / 40

What are enzymes?

22 / 40

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

23 / 40

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

24 / 40

What is the effect of pH on enzyme activity?

25 / 40

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

26 / 40

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

27 / 40

What is the effect of substrate concentration on enzyme activity?

28 / 40

What is the role of cofactors in enzyme function?

29 / 40

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

30 / 40

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

31 / 40

What is the function of coenzymes in enzymatic reactions?

32 / 40

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

33 / 40

Which of the following factors can denature an enzyme?

34 / 40

What is the main function of enzymes in biological systems?

35 / 40

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

36 / 40

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

37 / 40

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

38 / 40

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

39 / 40

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

40 / 40

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

0%

Download Certificate of Quiz Enzymes

On the end of Quiz, you can download the certificate of the quiz if you got more than 70% marks. Add a certificate to your job application or social profile (like LinkedIn) and get more job offers.

Download Enzymes MCQs with Answers Free PDF

You can also download 100 Enzymes Questions with Answers free PDF from the link provided below. To Download file in PDF click on the arrow sign at the top right corner.

If you are interested to enhance your knowledge regarding  English, Physics, Chemistry, Computer, and Biology please click on the link of each category, you will be redirected to dedicated website for each category.

Related Articles

Leave a Reply

Your email address will not be published. Required fields are marked *

Back to top button