Part 1 of Module 3 - Products Involved

University:
McMaster University
Course:
NHW 100 | Nutrition Fundamentals
Academic year:

2021
Views:

435

Pages:

1
Author:

Sabrina S.

Module 3 1). Stored ATP we have a bit of ATP that is stored within our muscle cells the higher the intensity of exercise, the harder it is for the body to keep up the production of ATP to meet the demands for ATP depiction occurs Since ATP is stored energy, we need to release the energy for it to enable a muscle contraction or other energy uses The energy is stored within phosphate bonds To release the energy an enzyme, ATPase, breaks the bonds between the phosphates (between and third bonds) The ATP molecule transitions from a triphosphate to adenosine diphosphate Question: under high intensity questions, how much ATP is around compared to ADP? low ATP, high ADP 2. Phosphocreatine (PCr) this chemical reaction occurs in in cytosol phosphocreatine is a molecule that has both creatine phosphate ADP starts to rapidly appear when you initiate exercise and ATP is used up. phosphocreatine's role in bioenergetics is to convert ADP back to ATP very quickly thus re-supplying ATP more creatine better at re-supplying ATP quickly →can't store very much and doesn't last long To make phosphocreatine you use both creatine and ATP as substrates ATP + creatine = PCr + ADP