ATP and energy transfer key words

Question 1

definition of atp

Answer 1

energy currency of the body

Question 2

where is atp stored

Answer 2

in the muscle cell

Question 3

what type of reaction is atp breakdown

Answer 3

reversible and endothermic

Question 4

sarcoplasm

Answer 4

muscle cytoplasm containing pc, glycogen, and myoglobin

Question 5

coupled reaction

Answer 5

when energy released in the first reaction is used in the second

Question 6

energy continuum

Answer 6

the relative contribution of the energy systems to resynthesise atp depending on intensity and duration. all three work constantly but one may be predonminant

Question 7

intermittent exercise

Answer 7

where the intensity repeatedly varies between maximal and submaximal to rest

Question 8

benefits of intermittent exercise

Answer 8

has built in recovery breaks e.g. injury time, period when ball goes out of play

Question 9

factors affecting thresholds

Answer 9

recovery periods
- o2 is used to replenish atp and pc stores and re-saturate myoglobin and haemoglobin
- longer breaks allow athletes to rehydrate e.g. through isotonic drinks to replenish glycogen

Question 10

advantages on increased aerobic fitness

Answer 10

• increased: efficiency of CV and respiratory system, and VO2 max
• delayed fatigue, lactate threshold and OBLA
• starts the breakdown of FFA’s sooner

Question 11

advantages on increased anaerobic fitness

Answer 11

• increased PC and glycogen stores, and tolerance to lactic acid
• delayed threshold of anaerobic systems