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irina [24]
3 years ago
8

More ATP is needed to perform physical exertion activities. Lungs, heart and blood vessels have to deliver more __(a)__ to the m

uscles to supply the required __(b)__
Health
1 answer:
amm18123 years ago
5 0

Answer:

(a) oxygen; (b) energy

Explanation:

Adenosine triphosphate (ATP) is the main source of energy for most cellular processes. ATP is known as 'the energy coin of the cell' because the hydrolysis of its high-energy phosphate bonds provides energy which is then used by the cells in metabolic processes. Moreover, the process of cellular respiration requires oxygen as a substrate to generate ATP. In consequence, cells with a higher energy requirement require more oxygen supply to generate more ATP.

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