CH7 - Water and Electrolytes
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
