Biology B3 1.3 The sports drink dilemma.

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What do most soft drinks contain?
Wate to replace water lost when sweating, sugar to replace sugar used for energy release in exercise and mineral ions to replace those lost in sweating.
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What happens to your muscles when you exercise?
They respire to release energy.
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What substance is used in respiration?
Glucose, a sugar.
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What happens to your body after you have been exercising a while and your body gets hot?
You sweat more to cool down.
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What does sweat contain?
Water and mineral ions.
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What may happen if your body sweats a lot?
Your body cells may become dehydrated.
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What may become necessary if you exercise for a long time?
It may be necessary to replace the sugar, mineral ions and water which have been used or lost.
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Why is glucose used during exercise?
Glucose is used in the process of respiration to release energy.
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What are sports drinks?
Sports drinks are solutions of sugar and mineral ions.
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What does the water in sports drinks do?
Help to rehydrate body cells.
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What are sports drinks designed to do?
Help balance the concentration of body fluids and the concentrations inside cells.
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If a drink concentration matches the body fluids, what is the solution called?
Isotonic.
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What evidence is there for the benefits of sports drinks?
Evidence is varied, some scientists think it is just as good to have a drink of water for short periods of exercise, however the drinks may help athletes who need to replace mineral ions and sugar as well as water.
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**QUESTIONS ABOUT SPORTS DRINKS OFTEN HAVE DATA, YOU MUST USE THAT DATA TO ANSWER THE QUESTIONS RELATED TO IT IN THE EXAM***
**QUESTIONS ABOUT SPORTS DRINKS OFTEN HAVE DATA, YOU MUST USE THAT DATA TO ANSWER THE QUESTIONS RELATED TO IT IN THE EXAM***
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Other cards in this set

Card 2

Front

What happens to your muscles when you exercise?

Back

They respire to release energy.

Card 3

Front

What substance is used in respiration?

Back

Preview of the front of card 3

Card 4

Front

What happens to your body after you have been exercising a while and your body gets hot?

Back

Preview of the front of card 4

Card 5

Front

What does sweat contain?

Back

Preview of the front of card 5
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