Biomolecules and Bioinorganic Chemistry

Metalloproteins MCQs with Answers

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Metalloproteins are proteins that contain metal ions as integral parts of their structure and function. These metal ions play crucial roles in the biological activity of the protein, contributing to functions such as enzymatic catalysis, electron transfer, and metal ion transport. Examples of metalloproteins include hemoglobin, which contains iron ions and transports oxygen in red blood cells, and cytochrome c, which contains heme and plays a role in electron transport in cellular respiration.

The incorporation of metal ions into metalloproteins is often essential for their specific biological functions. Metalloproteins exhibit a diverse range of structural motifs and coordination geometries that allow them to bind and utilize metal ions effectively. The metal ions within metalloproteins can undergo reversible oxidation-reduction reactions or act as Lewis acids or bases, facilitating biochemical reactions that are crucial for cellular processes.

Metalloproteins Online Quiz

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

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

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Metalloproteins MCQs

Metalloproteins

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1 / 40

What is the function of carbonic anhydrases in biological systems?

2 / 40

What is the term for the metalloprotein involved in electron transfer reactions in photosynthesis?

3 / 40

What is the term for the metalloprotein involved in oxygen sensing and regulation in cells?

4 / 40

Which metal ion is essential for the activity of metalloenzymes called zinc finger proteins?

5 / 40

What is the term for the metalloprotein responsible for binding and transporting oxygen in the bloodstream?

6 / 40

Which metal ion is commonly found in metalloproteins involved in electron transfer reactions?

7 / 40

What is the function of metalloenzymes called nitrogenases in biological systems?

8 / 40

Which metal ion is essential for the activity of metalloproteins involved in oxygen transport and storage?

9 / 40

What is the term for the specific site within a metalloprotein where the metal ion is coordinated by amino acid residues?

10 / 40

What is the term for the metalloprotein involved in the transport of oxygen from the lungs to tissues?

11 / 40

Which metal ion is commonly found in metalloproteins involved in oxygen transport and storage?

12 / 40

What is the term for the metalloprotein responsible for transporting copper in the bloodstream?

13 / 40

What is the function of metallohydrolases in biological systems?

14 / 40

Which metal ion is commonly found in metalloproteins involved in electron transfer reactions?

15 / 40

Which metal ion is found in the heme group of hemoglobins and is responsible for binding oxygen?

16 / 40

What is the function of copper-dependent enzymes known as monooxygenases?

17 / 40

Which metal ion is present in the active site of metalloenzymes called nitrogenases?

18 / 40

Which metal ion is present in the active site of metalloenzymes known as carbonic anhydrases?

19 / 40

Which metal ion is commonly bound to metallothioneins?

20 / 40

What is the term for the metalloprotein involved in electron transfer reactions in the respiratory chain?

21 / 40

Which metal ion is present in the active site of metalloenzymes called metalloproteases?

22 / 40

Which metal ion is present in the active site of metalloenzymes called metallohydrolases?

23 / 40

What is the function of metallothioneins in cells?

24 / 40

What is the term for the metalloprotein involved in electron transfer reactions in photosynthesis?

25 / 40

Which metal ion is commonly found in metalloproteins involved in oxygen sensing and regulation?

26 / 40

Which metal ion is present in the heme group of myoglobin?

27 / 40

What is the function of metalloproteins known as ferritins?

28 / 40

Which metal ion is present in the heme group of cytochrome c?

29 / 40

Which metal ion is present in the active site of metalloenzymes called copper-dependent enzymes?

30 / 40

What are metalloproteins?

31 / 40

What is the function of metalloproteins known as cytochromes in cellular respiration?

32 / 40

What is the term for the metalloprotein involved in oxygen storage and transport in muscle tissues?

33 / 40

What is the role of zinc finger proteins in gene regulation?

34 / 40

Which metal ion is commonly found in metalloproteins involved in oxygen sensing and regulation?

35 / 40

Which type of metalloproteins contain iron-sulfur clusters and participate in electron transfer reactions?

36 / 40

Which metal ion is present in the active site of metalloenzymes called nitrogenases?

37 / 40

What is the function of metalloproteases in biological systems?

38 / 40

What is the function of metalloproteins known as hemoglobins?

39 / 40

Which metalloprotein acts as an antioxidant by scavenging free radicals and protecting cells from oxidative damage?

40 / 40

Which metal ion is commonly found in metalloproteins and plays a crucial role in electron transfer reactions?

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Metalloproteins Flashcards

What are metalloproteins?

Proteins containing metal ions

Which metal ion is commonly found in metalloproteins and plays a crucial role in electron transfer reactions?

Iron

What is the term for the specific site within a metalloprotein where the metal ion is coordinated by amino acid residues?

Metal binding site

Which type of metalloproteins contain iron-sulfur clusters and participate in electron transfer reactions?

Ferredoxins

What is the function of metalloproteins known as hemoglobins?

Oxygen transport

Which metal ion is found in the heme group of hemoglobins and is responsible for binding oxygen?

Iron

What is the term for the metalloprotein involved in oxygen storage and transport in muscle tissues?

Myoglobin

Which metal ion is present in the active site of metalloenzymes known as carbonic anhydrases?

Zinc

What is the function of carbonic anhydrases in biological systems?

Carbon dioxide hydration

Which metal ion is essential for the activity of metalloenzymes called zinc finger proteins?

Zinc

What is the role of zinc finger proteins in gene regulation?

DNA binding

Which metalloprotein acts as an antioxidant by scavenging free radicals and protecting cells from oxidative damage?

Superoxide dismutase

What is the function of metallothioneins in cells?

Metal detoxification

Which metal ion is commonly bound to metallothioneins?

Zinc

What is the term for the metalloprotein involved in electron transfer reactions in the respiratory chain?

Cytochrome c

Which metal ion is present in the heme group of cytochrome c?

Iron

What is the function of metalloproteins known as cytochromes in cellular respiration?

Electron transport

Which metal ion is commonly found in metalloproteins involved in oxygen transport and storage?

Iron

What is the term for the metalloprotein responsible for transporting copper in the bloodstream?

Ceruloplasmin

Which metal ion is present in the active site of metalloenzymes called copper-dependent enzymes?

Copper

What is the function of copper-dependent enzymes known as monooxygenases?

Oxygenation reactions

Which metal ion is essential for the activity of metalloproteins involved in oxygen transport and storage?

Iron

What is the term for the metalloprotein responsible for binding and transporting oxygen in the bloodstream?

Hemoglobin

Which metal ion is present in the heme group of myoglobin?

Iron

What is the function of metalloproteins known as ferritins?

Iron storage

Which metal ion is commonly found in metalloproteins involved in oxygen sensing and regulation?

Iron

What is the term for the metalloprotein involved in oxygen sensing and regulation in cells?

Hypoxia-inducible factor

Which metal ion is present in the active site of metalloenzymes called metallohydrolases?

Zinc

What is the function of metallohydrolases in biological systems?

Hydrolysis reactions

Which metal ion is commonly found in metalloproteins involved in electron transfer reactions?

Iron

What is the term for the metalloprotein involved in electron transfer reactions in photosynthesis?

Cytochrome b6f

Which metal ion is present in the active site of metalloenzymes called nitrogenases?

Iron

What is the term for the metalloprotein involved in the transport of oxygen from the lungs to tissues?

Hemoglobin

Which metal ion is present in the active site of metalloenzymes called metalloproteases?

Zinc

What is the function of metalloproteases in biological systems?

Protein degradation

Which metal ion is commonly found in metalloproteins involved in electron transfer reactions?

Iron

What is the term for the metalloprotein involved in electron transfer reactions in photosynthesis?

Cytochrome b6f

Which metal ion is present in the active site of metalloenzymes called nitrogenases?

Iron

What is the function of metalloenzymes called nitrogenases in biological systems?

Nitrogen fixation

Which metal ion is commonly found in metalloproteins involved in oxygen sensing and regulation?

Iron

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