Metallo enzymes

What is the primary role of metallo enzymes in biological system?

• Catalyzing metallo enzymes

• Storing genetic information

• Providing structural support

• Oxygen transport

Which metal ion is commonly found in active site?

• Calcium

• Iron

• Zinc

• Copper

Metallo enzymes that contain iron as their active metal ion are involved in which of the following processes?

• DNA replication

• Photosynthesis

• Oxygen transport

• Cell division

Which metal is essential for the activity of enzymes cytochrome oxidase in the electron transport chain?

• Copper

• Magnesium

• Manganese

• Nickel

Metallo enzymes plays a crucial role in which of the following type of reactions?

• Hydrolysis

• Oxidation - reduction

• Isomerization

• Dehydration

Hemoglobin, metallo enzyme contain which metal ion as it core?

• Iron

• Copper

• Zinc

• Magnesium

Which metal ion is the activity of superoxide dismutase,an enzyme that protect cells from oxidative damage?

• Iron

• Copper

• Zinc

• Manganese

Metallo enzymes often require a metal cofactor to:

• Store energy

• Increase enzyme stability

• Alter their PH optimum

• Facilitate catalysis

Which metalloenzyme is responsible for breaking down hydrogen peroxide into water and oxygen in cells

• Catalase

• Lysozyme

• Ribonuclease

• Alkaline phosphatase

Metallo enzymes are sensitive to change in metal ion concentration and PH, making the crucial for maintaining

• Osmotic balance

• Cellular respiration

• Enzymes stability

• Homeostasis