CH7 - Water and Electrolytes

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It is recommended by nationally known nutritionists that casual athletes do not need sports drinks if they work out less than __________.

2 hours per day

Which of the following statements is FALSE?

A cell will shrink when the concentration of electrolytes is greater inside the cell than outside the cell.

Based on the results of the Oxford study, people in which of the following groups need sports drinks?

Olympic- or elite-level athletes

Electrolytes control fluid balance in the cells.

True

The beverage industry stated that the Oxford study overlooks the science proving that sports drinks provide athletes with what specific nutrients necessary for an athlete's overall health?

carbohydrate energy and hydration

After exercising on a hot day you experience sweating, increased thirst, weakness, muscle cramps, nausea, and dizziness. This is most likely __________.

heat exhaustion

Most of our body water is excreted via the __________ as urine.

kidneys

Electrolytes help control fluid balance via __________, the movement of water through a semipermeable membrane based on solute concentration.

osmosis

The movement of water across a membrane toward a higher concentration of solutes is called __________.

osmosis

Which of the following foods is likely to have the highest amount of sodium?

ramen noodle soup, chicken flavor (1 package)

Scientists at Oxford University question the research validity of the benefits of sports drinks provided by beverage companies because the research is sponsored by __________.

sports drink companies

What nutrient did nationally known nutritionists indicate that most sports drinks contain?

sugar


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