GCSE Biology (AQA)

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Sports Drinks

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Cell Biology Transport in Cells

Sports Drinks

1:01 Osmosis
Spec 4.1.3.1 4.1.3.2 4.1.3.3
Previous Comparing Water Concentrations Next Rate of Water Uptake
  • During exercise, glucose is used up in respiration.
  • Water and salts are lost through sweat.
  • Athletes use sports drinks during or after exercise to replenish water, salts, and nutrients.
  • Isotonic sports drinks have similar concentrations of water, salt, and sugar as the blood.
  • These drinks help quickly replace water, salt, and sugars lost during exercise.
  • Sports drinks are often discussed in the context of osmosis.
  • It's important to understand the term "isotonic" in relation to exercise and sports drinks.
  • After exercise, levels of water, salt, and sugars in the blood are typically lower.
  • Isotonic sports drinks restore these levels to normal without providing an excess.
  • The molecules from the drinks are absorbed in the intestine and enter the bloodstream.

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