aos 2

Question 1

food fuels

Answer 1

carbohydrates
fats
protein

Question 2

carbohydrates

Answer 2

fruit, cereal, bread
-preferred source of fuel during exercise
-digestive system breaks down to glucose in the blood, stored as glycogen at the muscle and liver, excess stored in adipose (fat) tissue

Question 3

fats (triglycerides)

Answer 3

-butter, cheese, oil
-preferred source of furl when resting
-digestive system breaks down to free fatty acids (FFA’s) in the blood, stored in muscles as triglycerides, excess stored as adipose (fat) tissue​

Question 4

protein

Answer 4

-lean meat, fish, eggs
-preferred fuel source after exercise
-primarily used for growth and repair
-stored as amino acids in the blood and muscles, excess stored in adipose tissue​

Question 5

chemical fuels

Answer 5

adenosine triphosphate

Question 6

adenosine triphosphate

Answer 6

ATP is the major source of energy for muscular contraction (movement) ​

Small amounts stored in the muscles (few contractions) ​

The breakdown of ATP leaves 2 by products; ADP (Adenosine and two Phosphate molecules) and an Pi (Inorganic phosphate) ​

Needs to be continually rebuilt/resynthesised for extended periods of exercise​

Question 7

how is energy produced

Answer 7

Muscles break ATP​

​Energy systems make (resynthesise) ATP ​

(Factories that make ATP)​

​They do this by finding energy from fuels.​

​