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3. Select each of the following roles that vitamins and minerals have in relationship to exercise performance. A) Provide an efficient energy source B) Help extract energy from nutrients Q Enhance endurance by helping to prolong perceived time to exhaustion D) Transport oxygen E) Repair tissues
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B) help extract energy from nutrients : many of the vitamins like thiamin, niacin, riboflavin and minerals like iron, calcium helps in metabolic cycles that yield energy from nutrients.

C) enhance endurance by helping to prolong perceived time to exhaustion : vitamins and minerals like vitamin D,calcium helps in bone growth, bone strengthening and muscle endurance. Iron helps to increase muscle function and endurance capacity.

D) transport oxygen : iron is the main oxygen carrying mineral. Iron is the main component of haemoblogin which binds to oxygen and carries it to different body tissues.

E) repair tissues : many vitamins and minerals help to repair body tissue like muscles, tendons and ligaments. Vitamin B12 and folic acid are important for cellular repair. Vitamin C and vitamin E, selenium have anti oxidant properties and help protect cells against the damage caused by free radicals.

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