4.2 The Effect of Exercise On The Body Flashcards Preview

GCSE Biology 2.4 Energy From Respiration > 4.2 The Effect of Exercise On The Body > Flashcards

Flashcards in 4.2 The Effect of Exercise On The Body Deck (10)
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What do you need to increase in aerobic respiration?

Increase the rate that oxygen and glucose reach the muscle cells, and remove the extra waste co2 faster


What happens when the heart rate increases and the blood vessels supplying the muscles dilate?

More blood containing oxygen and glucose can reach the muscles


Why do your muscles need more energy when you exercise?

So they can contract


What is allowed to happen when your breathing rate and depth of each breath increase?

A greater uptake of oxygen and release of carbon dioxide at the lungs


What do muscles store glucose as?



When is the glycogen converted back into glucose?

Very quickly during exercise


Why is it important to remove all the carbon dioxide from the lungs?

So there can be diffusion of the oxygen to the blood in the lungs. If not, then this becomes anaerobic respiration and your body will soon run out of oxygen


Name 4 physical changes during exercise

•increase heart rate
•increase breathing rate
•breathe deeper


Name 3 long term health benefits of exercise

•increase efficiency of blood supply
•improved cardio and pulmonary function (reduces risk of heart disease)
•controls obesity and weight


What is fatigue?

The build up of lactic acid so that you can't move