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Flashcards in Physiology Deck (19):
1

What does ATP stand for?

Adenosine Triphosphate

2

What is ATP?

The breakdown of ATP is what gives our muscles energy.
There is enough stored for one contraction
It must constantly be rebuilt in order to keep using it

3

What does ATP consist of?

An adenosine molecule and three phosphates

4

How does ATP create energy?

When ATP is used it then breaks down and creates ADP which is an inorganic phosphate.

5

What are the fuels for energy?

ATP is resynthesised through these energy fuels:
-phosphocreatine
-carbohydrates
-proteins
-fats

6

What is carbohydrates in the blood, muscle and excess?

Glucose-blood, glycogen-muscle, liver adipose tissue- excess

7

What is fat in the blood, muscle and excess

Fatty acids- blood
Triglycerides-muscle
Adipose tissue- excess

8

What is protein in the blood, muscle and excess

Amino acids- blood
Amino acids- muscle
Adipose tissue- excess

9

What is the preferred fuel source during rest?

Fats

10

What is the main role of protein in the body?

Growth and repair of tissue

11

When is protein used as a fuel source?

Long duration endurance exercise

12

What are the three energy systems that converts our nutrients to energy?

-ATP-PC system
-Anaerobic glycolysis system
-Aerobic system

13

Does the ATP-PC system use oxygen?

No it doesn't require any oxygen

14

When is the ATP-PC system used? Sport example.
Does it have any waste products?

It's used for shorts bursts of exercise (about 10 secs worth) eg 100m sprint.
Has no waste products

15

What is the energy source of Anaerobic glycolysis? What is the duration? Sporting example. Does it have any waste products?

-stored glycogen
-10 secs-2mins
-200m swim
-lactic acid (muscle fatigue)

16

Does the anaerobic glycolysis system use oxygen?

No, this system can create ATP without the need of oxygen

17

Does the Aerobic system use oxygen?

Yes, it uses oxygen to convert nutrients to ATP.

18

What is the energy source of Aerobic system? What is the duration? Sports example. Are there any waste products?

The proffered fuel is carbohydrates, after three hours it uses fats and proteins.
-2 mins
-walking, marathons
-carbon dioxide (which we breathe out) and water.

19

Explain energy system interplay

All systems are in play all the time, however the level of contribution changes depending on the intensity and duration of the activity.