Biomolecules and Bioinorganic Chemistry

Proteins MCQs with Answers

Welcome to the Proteins MCQs with Answers, it helps learners quickly identify areas for improvement in Proteins Online Test.

Proteins are essential macromolecules composed of amino acids linked by peptide bonds, serving critical roles in nearly all biological processes. They function as enzymes, antibodies, structural components, and signaling molecules in cells, reflecting their diverse functions and importance in maintaining cellular function and structure. Understanding Proteins through MCQs is essential for students and professionals in biochemistry and molecular biology. These MCQs on Proteins cover a wide array of topics, including protein structure, function, folding, and interactions with other molecules.

Proteins Quiz Questions provide a practical way to assess and reinforce knowledge of protein biochemistry. Engaging with Proteins Practice Questions allows learners to apply theoretical concepts to practical scenarios, improving problem-solving skills and deepening their understanding of protein behavior. Additionally, a well-structured Proteins Test Bank offers a comprehensive collection of Proteins Multiple Choice Questions, ensuring thorough preparation for exams and academic assessments.

Proteins Online Quiz

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

  • Test Name: Proteins 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 Quiz, simply click on question and comment below that question, so that we can update the answer in the quiz section.

Proteins MCQs

Proteins Quiz

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1 / 40

Which of the following is a function of hormones in the body?

2 / 40

Which of the following represents the primary structure of a protein?

3 / 40

What is the function of antibodies in the immune system?

4 / 40

What is the role of messenger RNA (mRNA) in protein synthesis?

5 / 40

What is the function of methylation in protein regulation?

6 / 40

What is the name of the process by which proteins are synthesized?

7 / 40

Which of the following represents the quaternary structure of a protein?

8 / 40

Which amino acid is known as the "building block of proteins"?

9 / 40

Which of the following is NOT a step in protein synthesis?

10 / 40

What is the function of ligases in enzymatic reactions?

11 / 40

Which of the following is a function of regulatory proteins in the body?

12 / 40

How many standard amino acids are found in proteins?

13 / 40

What is the function of the tertiary structure in proteins?

14 / 40

What type of bond stabilizes the alpha helix and beta sheet structures?

15 / 40

Which of the following is NOT a class of enzymes based on their function?

16 / 40

Which of the following is NOT a function of proteins in cell signaling?

17 / 40

Which of the following is a function of transport proteins in the body?

18 / 40

What is the function of receptors in cell signaling?

19 / 40

Which of the following represents a post-translational modification of proteins?

20 / 40

What is the function of transcription factors in gene regulation?

21 / 40

What is the function of enzymes in biological systems?

22 / 40

What is the function of transfer RNA (tRNA) in protein synthesis?

23 / 40

What is the function of the alpha helix and beta sheet structures in proteins?

24 / 40

Which of the following functional groups is present in all amino acids?

25 / 40

What type of proteins consist of multiple polypeptide chains?

26 / 40

Which organelle is responsible for protein synthesis in eukaryotic cells?

27 / 40

Which of the following is a function of structural proteins in the body?

28 / 40

Which of the following is a function of proteins in the body?

29 / 40

What is the function of chaperone proteins in protein folding?

30 / 40

What are the building blocks of proteins?

31 / 40

Which of the following represents the secondary structure of a protein?

32 / 40

What is the function of structural proteins in the extracellular matrix?

33 / 40

Which of the following represents the tertiary structure of a protein?

34 / 40

What is the name of the process by which misfolded proteins are degraded?

35 / 40

What is the function of motor proteins in cells?

36 / 40

What type of bond links amino acids in a protein chain?

37 / 40

What is the function of ribosomes in protein synthesis?

38 / 40

What is the function of phosphorylation in protein regulation?

39 / 40

What is the general structure of an amino acid?

40 / 40

What forces are involved in stabilizing the tertiary structure of proteins?

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Proteins Flashcards

What are the building blocks of proteins?

Amino acids

How many standard amino acids are found in proteins?

20

Which of the following functional groups is present in all amino acids?

Amino and carboxyl groups

Which amino acid is known as the "building block of proteins"?

Glycine

What is the general structure of an amino acid?

Central carbon bonded to an amino group, a carboxyl group, a hydrogen atom, and a side chain

Which of the following represents the primary structure of a protein?

Sequence of amino acids

What type of bond links amino acids in a protein chain?

Peptide bond

What is the name of the process by which proteins are synthesized?

Translation

What is the function of transfer RNA (tRNA) in protein synthesis?

Carries amino acids to the ribosome

Which organelle is responsible for protein synthesis in eukaryotic cells?

Ribosome

What is the function of ribosomes in protein synthesis?

Site of protein synthesis

Which of the following is NOT a step in protein synthesis?

Transcription

What is the role of messenger RNA (mRNA) in protein synthesis?

Carries genetic information from DNA to ribosomes

Which of the following represents the secondary structure of a protein?

Alpha helix and beta sheet

What type of bond stabilizes the alpha helix and beta sheet structures?

Hydrogen bond

What is the function of the alpha helix and beta sheet structures in proteins?

Provide structural stability

Which of the following represents the tertiary structure of a protein?

Three-dimensional folding of a single polypeptide chain

What forces are involved in stabilizing the tertiary structure of proteins?

Hydrophobic interactions, hydrogen bonds, disulfide bonds, and van der Waals forces

What is the function of the tertiary structure in proteins?

Determines the overall shape and function of the protein

Which of the following represents the quaternary structure of a protein?

Interaction between multiple protein subunits

What type of proteins consist of multiple polypeptide chains?

Quaternary proteins

What is the function of chaperone proteins in protein folding?

Assist in proper folding of other proteins

What is the name of the process by which misfolded proteins are degraded?

Proteolysis

Which of the following is a function of proteins in the body?

Enzymatic catalysis

What is the function of enzymes in biological systems?

Catalyze biochemical reactions

Which of the following is NOT a class of enzymes based on their function?

Ligases

What is the function of ligases in enzymatic reactions?

Join two molecules together

Which of the following is a function of structural proteins in the body?

Provide mechanical support

What is the function of motor proteins in cells?

Generate movement along cytoskeletal filaments

Which of the following is a function of regulatory proteins in the body?

Control gene expression

What is the function of antibodies in the immune system?

Recognize and neutralize foreign pathogens

Which of the following is a function of transport proteins in the body?

Facilitate the movement of molecules across membranes

What is the function of receptors in cell signaling?

Recognize specific signaling molecules

Which of the following is NOT a function of proteins in cell signaling?

Nucleic acid synthesis

What is the function of transcription factors in gene regulation?

Bind to DNA and control the transcription of specific genes

Which of the following is a function of hormones in the body?

Regulate physiological processes

What is the function of structural proteins in the extracellular matrix?

Provide support and strength to tissues

Which of the following represents a post-translational modification of proteins?

Phosphorylation

What is the function of phosphorylation in protein regulation?

Regulate protein activity

What is the function of methylation in protein regulation?

Regulate gene expression

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