Bioinorganic Chemistry: Metals in Biology
Test your knowledge of metal ions and their biological roles in proteins, enzymes, and transport systems.
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Quiz Questions & Answers
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Question 1: Which metal is essential for zinc finger proteins?
Iron (Fe)
Zinc (Zn)
Copper (Cu)
Magnesium (Mg)
Question 2: What is the primary function of copper in biological systems?
Oxygen transport in hemoglobin
Electron transfer enzymes
Bone mineralization
Hormone synthesis
Question 3: Through which atoms does heme bind to metal ions?
Carbon
Nitrogen
Oxygen
Sulfur
Question 4: What is the primary role of Mg²⁺ as a cofactor?
DNA pairing
ATP-dependent enzymes
Lipid bilayer formation
Hemoglobin binding
Question 5: Which protein is responsible for iron transport in blood?
Ferritin
Transferrin
Albumin
Myoglobin
Question 6: Which metal is an essential component of nitrogenase?
Molybdenum (Mo)
Calcium (Ca)
Sodium (Na)
Potassium (K)
Question 7: What is the primary role of Ca²⁺ in cellular signaling?
Enzyme inhibitor
Second messenger
Waste ion
Acid
Question 8: How do metalloproteins typically bind their metal ions?
Through lipids
Through amino acid side chains
Through carbohydrates
Through vitamins
Question 9: What energy source is used in primary active transport?
ATP
Glucose
Oxygen
Sodium chloride
Question 10: In symport transport, substances move:
In the same direction
In opposite directions
In no particular direction
Randomly