1. Which biochemical reaction provides energy for 5–10 seconds of sustained musc

Question

1. Which biochemical reaction provides energy for 5–10 seconds of sustained muscular contraction?

2.All of the following are characteristics of the creatine phosphate bioenergetic system except:

1 PCr = 1 ATP

3.All of the following are characteristics of the creatine phosphate bioenergetic system except:

1 PCr = 1 ATP

4. During a 6.2-mile run (10 K) the predominate energy system activated is _________; however, at the end of the race when the runner is sprinting towards the finish line, __________ is (are) the predominate energy system(s).

oxidative phosphorylation, anerobic glycolysis

5. What energy system would primarily be used when performing a pole vault?

6.When ATP is broken down within the muscle cells and energy is released from the chemical bonds, this process is illustrative of a/an:

endergonic reaction

7.The key regulatory and/or control enzyme of the electron transport chain is:

Pyruvate kinase

8. During high-intensity exercise, the _______ decreases in the muscle cell (fiber), thus contributing to the onset of muscular fatigue.

pH

9.What are the primary characteristics of the anaerobic glycolytic system?

Explanation / Answer

9.2ATP's if glycogen is the substrate is the primary characteristic of glycolytic system.anaeribic glycolytic system means fast glycosis.

8.Depletion of muscle glycogen is the primary cause for decrease in muscle fiber,this contributing to muscular fatigue during high intensity exercise.

7.Isocitrate dehydrogenase is the key regulatory enzyme of the electron transport chain.

6.when ATP is broken down within the muscle cells and energy is released from the chemical bond,it is called exergonic reaction.

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