Consider the following observations regarding the role of common and important chemical elemen...........

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Consider the following observations regarding the role of common and important chemical elements in th Human Body:

1. Phosphorus is a part of energy storage molecules

2. Potassium is useful for water-ion balance in body fluids

3. Sulphur is a structural component of some proteins

4. Iron is a basic component of haemoglobin

5. Magnesium is a Cofactor for many etwymes

Which among the above observations is / are correct?

1, 3 and 4 only

1, 2, 3 and 4 only

1, 3, 4 and 5 only

1, 2, 3, 4 and 5

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Explanation:

Oxygen - Part of water and most organic molecules; essential to physiological processes
Carbon - Basic component of organic molecules
• Hydrogen - Part of most organic molecules and water
• Nitrogen- Component of proteins and nucleic acids
Calcium - Component of hones; essential for nerves and muscles; blood clotting
• Phosphorus - Part of cell membranes and energy storage molecules; component of hones, teeth, and nervous tissue
• Potassium - Important for nerve function, muscle contraction, and water-ion balance in body fluids
• Sulfur - Structural component of some proteins
• Sodium - Primary ion in body fluids; essential for nerve function Chlorine - Major ion in body fluids Magnesium - Trace Cofactor for enzymes; important to muscle contraction and nerve transmission
• Iron - Trace Basic component of hemoglobin