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    Question

    Which of the following is essential to regulate the

    heart beat?
    A Sodium Correct Answer Incorrect Answer
    B Sulphur Correct Answer Incorrect Answer
    C Potassium Correct Answer Incorrect Answer
    D Iron Correct Answer Incorrect Answer

    Solution

    Potassium(K) plays a role in every heart beat. A hundred thousand times a day, it helps trigger the heart to squeeze blood through the body. It also helps your muscles to move, nerves to work and kidneys to filter blood. Phosphorus is good for the development of bones whereas iron deficiency leads to anaemia.

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