ATP

Question 1

the bonds between adenosine and the 3 phosphates are ____ energy bonds

Answer 1

high

Question 2

what is ATP

Answer 2

only useable form of energy in the body

Question 3

how do other forms of energy (e.g. carbohydrates) become usable energy

Answer 3

converted into ATP

Question 4

how is energy for muscle contraction created

Answer 4

breaking of bond between adenosine and one of its phosphates

Question 5

what is an enzyme

Answer 5

biological catalyst that speeds up (or slows down) chemical reactions

Question 6

what enzyme is used in this reaction:

ATP –> ADP + P + E

Answer 6

ATPase

Question 7

what type of reaction is this:

ATP –> ADP + P + E

Answer 7

exothermic

Question 8

what happens when bonds break

Answer 8

energy is released

Question 9

how does the body make more energy after ATP is broken down

Answer 9

ADP re-synthesises back into ATP

Question 10

is required for ATP re-synthesis

Answer 10

energy from food

Question 11

what type of reaction is ATP re-synthesis

Answer 11

endothermic

Question 12

why is ATP re-synthesis endothermic

Answer 12

requires energy to form bonds

Question 13

what is a coupled reaction

Answer 13

where products of one reaction are used in another reaction

Question 14

the breakdown and re-synthesis of ATP is called a _______ ________

Answer 14

coupled reaction

Question 15

where is ATP stored

Answer 15

within the muscles

Question 16

what is ATP made up of

Answer 16

1 adenosine
3 phosphate

Question 17

why is the breakdown of ATP exothermic

Answer 17

energy is released

Question 18

what type of energy does ATP breakdown produce for muscle contraction

Answer 18

kinetic cnegy

Question 19

what happens of there is no ATP (2)

Answer 19

• no energy for work
• fatigue sets in

Question 20

body has _______ stores of ATP

Answer 20

limited

Question 21

how long can ATP supply energy for

Answer 21

2/3 seconds (typically fight or flight response)

Question 22

where does energy to resynthesises ADP back into ATP come from (2 - linked)

Answer 22

the 3 energy systems
- ATP/PC
- Glycolytic
- Aerobic
produce energy

then coupled reactions use energy from energy systems for ATP re-synthesis

Question 23

what is an exothermic reaction (2)

Answer 23

• compound broken down into smaller products
• chemical reaction releases energy as it progresses

Question 24

what is an endothermic reaction (2)

Answer 24

• group of elements/smaller products combine to form a compound
• chemical reaction needs energy added for it to progress