Q: 25 (IAS/2013)
question_subject:
Science
question_exam:
IAS
stats:
0,79,101,22,46,33,79
keywords:
{'muscles': [1, 0, 0, 1], 'minerals': [1, 0, 2, 6], 'calcium': [2, 0, 0, 4], 'human body': [40, 2, 44, 29], 'sodium': [10, 2, 12, 23], 'iron': [0, 0, 1, 1], 'contraction': [0, 0, 0, 2]}
While calcium is indeed required for muscle contraction, it is not the only mineral involved. Iron and sodium also play important roles in muscle function. Iron is essential for the oxygen transport and energy production in muscles, while sodium is involved in the transmission of nerve signals that regulate muscle contractions. Therefore, the correct answer is 1, 2, and 3.