Proteins MCQs with answers Page - 1

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Q. What are the building blocks of proteins?

  • (A) Nucleotides
  • (B) Amino acids
  • (C) Fatty acids
  • (D) Monosaccharides

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Q. Which type of bond links amino acids together in proteins?

  • (A) Hydrogen bond
  • (B) Ionic bond
  • (C) Peptide bond
  • (D) Glycosidic bond

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Q. Where are proteins synthesized in the cell?

  • (A) Nucleus
  • (B) Ribosomes
  • (C) Mitochondria
  • (D) Golgi apparatus

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Q. How many different amino acids are commonly found in proteins?

  • (A) 10
  • (B) 15
  • (C) 20
  • (D) 25

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Q. Which of the following is a structural protein?

  • (A) Hemoglobin
  • (B) Keratin
  • (C) Insulin
  • (D) Amylase

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Q. Which of the following proteins acts as an enzyme?

  • (A) Collagen
  • (B) Amylase
  • (C) Keratin
  • (D) Insulin

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Q. What determines the function of a protein?

  • (A) Its sequence of nucleotides
  • (B) Its shape and structure
  • (C) Its pH level
  • (D) Its solubility

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Q. Which of the following is NOT a function of proteins?

  • (A) Catalyzing reactions
  • (B) Storing genetic information
  • (C) Transporting molecules
  • (D) Acting as hormones

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Q. What is the process of protein synthesis called?

  • (A) Replication
  • (B) Transcription
  • (C) Translation
  • (D) Transformation

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Q. What are enzymes made of?

  • (A) Lipids
  • (B) Proteins
  • (C) Carbohydrates
  • (D) Nucleic acids
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