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Flashcards in ATP-PC SYSTEM Deck (11)
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1

How is the ATP-PC system powered?

The chemical fuel of the ATP:
-Phosphocreatine (PC).

2

What is the enzyme which breaks down phosphocreatine (PC)?

The controlling enzyme used to break down phosphocreatine (PC) is creatine kinase.

3

How does the ATP-PC system work?

1. PC is broken down by creatine kinase to release energy.
2. The same pocket of energy then builds up ADP+P to form ATP.

4

What are the advantages and disadvantages of the ATP-PC system?

Advantages:
1. Rapid and simple reaction, only 2-10 seconds.
2. Occurs without any special features of the muscle cell.
3. No fatiguing by-products.

Disadvantages:
1. The capacity to maintain ATP levels with this system is limited.
2. Only lasts for a few seconds.

5

What are some sporting examples of when the ATP-PC system is used?

When the system is used:
-Jump shot in basketball.
-100m sprint.
-Start of a 400m race.

6

What type of reaction is the ATP-PC system?

The ATP-PC system is an exothermic reaction.

7

What is the site of reaction in the ATP-PC system?

The site of reaction in the ATP-PC system is the sarcoplasm.

8

How much ATP is re-synthesised in the ATP-PC system?

In the ATP-PC system, every 1 molecule of PC = 1 molecule of ATP so the ratio is 1:1.

9

What is the intensity of the ATP-PC system?

The intensity of the ATP-PC system is very high.

10

What is the duration of the ATP-PC system?

The duration of the ATP-PC system is 2-10 seconds.

11

Which additional factors should be mentioned when answering a question on energy systems?

1. Reaction
2. Enzyme
4. Site
4. Yield.