Hormones are released when an athlete is preparing for and running a marathon - OCR Gateway - GCSE Biology - Question 23 - 2023 - Paper 3
Question 23
Hormones are released when an athlete is preparing for and running a marathon.
Complete the sentences below to describe the hormones involved before and during the ... show full transcript
Worked Solution & Example Answer:Hormones are released when an athlete is preparing for and running a marathon - OCR Gateway - GCSE Biology - Question 23 - 2023 - Paper 3
Step 1
Before the race, the athlete's body needs to prepare for action. The body responds by secreting the hormone
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adrenaline.
Step 2
This hormone causes blood to be diverted from the
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digestive system to the muscles.
Step 3
During the race, blood sugar levels will decrease, so another hormone called
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glucagon will be released.
Step 4
This results in stores of
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glycogen being used to maintain the blood sugar levels allowing the athlete to complete the marathon.
Step 5
1.
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The endocrine system uses chemical messengers/hormones, while the nervous system uses electrical messages/nerve impulses.
Step 6
2.
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Endocrine responses are longer-lived, while nervous responses are usually quicker.
