Which of the following statements is false?

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${Ca}^{2 +}$ ions are not important in maintaining the regular beating of the heart

${Mg}^{2 +}$ ions are important in the green parts of plants

${Mg}^{2 +}$ ions form a complex with ATP

${Ca}^{2 +}$ ions are important in blood clotting

answer is A.

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Detailed Solution

Calcium ions activates important protein factors which is responsible for the pathway of blood clotting. Calcium ions play an important role in muscle contraction which in turn is also important for maintaining heart beat. Calcium ions also controls the regular contraction of the heart.

Chlorophyll which is an important pigment in plants that helps in photosynthesis consist of magnesium ion in its structure.

Magnesium ions are also associated with ATP to form a complex which together makes ATP stable.

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