Energy Systems 3

Question 1

describe the ATP-PC system

Answer 1

PC > P+C+energy (broken down by creatine kinase)

energy+ADP+P=ATP

Question 2

what type of reaction is the ATP-PC

Answer 2

anaerobic

Question 3

what is the site of reaction for the ATP-PC system?

Answer 3

sarcoplasm

Question 4

sports examples when using ATP-PC system?

Answer 4

100m sprint, goalshooter in netball

Question 5

advantaged of ATP-PC system?

Answer 5

• no delay for oxygen
• PC already available in muscles
• fast recovery & rapid resynthesis of ATP
• no fatiguing by by-product (LA)

Question 6

what is the fuel for the ATP-PC system?

Answer 6

phosphocreatine

Question 7

what is the duration of the ATP-PC system?

Answer 7

up to 10 seconds

Question 8

what are disadvantages of the ATP-PC system?

Answer 8

• low ATP yield
• small PC store which lead to rapid fatigue after 8-10 seconds

Question 9

what is the site of reaction for the gycolytic system?

Answer 9

sarcoplasm

Question 10

whats the fuel in the glycolytic system?

Answer 10

glycogen

Question 11

what type of reaction is the glycolytic store?

Answer 11

anaerobic

Question 12

what is the by-product of the glyolytic system?

Answer 12

lactic acid

Question 13

what is the duration of the glycolytic system?

Answer 13

up to 3 minutes

Question 14

what are some sports examples where a performer/s would use the glycolytic system?

Answer 14

a netball centre, tennis rally or a 400m sprint

Question 15

what are advantages of the glycolytic system?

Answer 15

• no delay for oxygen
• fast fuel breakdown
• lactic acid can be recycled into fuel

Question 16

describe the glycolytic system:

Answer 16

glycogen > glucose (through GPP) > pyruvix acid (through PFK) > lactic acid (through LDH). energy from the reactions + 2ADP + 2P = 2ATP

Question 17

what are the disadvantages of the glycolytic system?

Answer 17

• fatiguing from by product
• low ATP yield
• recovery time is long (up to 60 mins)

Question 18

what are the three stages of the aerobic system?

Answer 18

aerobic glycolysis, krebs cycle and electron transport chain (ETC)

Question 19

describe aerobic glycolysis

Answer 19

glycogen> glucose (FFAS) (gpp) > pyruvic acid (pfk) > acetyl coA = 2ATP

Question 20

describe kreb’s cycle

Answer 20

acetyl coA + oxaloacetic acid > citric acid > CO2, hydrogen and energy> 2ATP

Question 21

describe the electron transport chain

Answer 21

hydrogen > e~ (carried by electron carriers NAD and FAD)
H+ + O2 = H20
= 34ATP =38ATP altogether

Question 22

what type of reaction is the aerobic system

Answer 22

aerobic

Question 23

what are the sites of reaction in the aerobic system

Answer 23

1. sacroplasm
2. matrix
3. cristae of mitochondria

Question 24

what are the by-products of the aerobic system

Answer 24

CO2, H20

Question 25

duration of aerobic system

Answer 25

3 minutes onwards

Question 26

sporting examples of using the aerobic system

Answer 26

marathon runner, long distance rowing

Question 27

advantages of the aerobic system

Answer 27

- high atp yield - long duration of energy production - no fatigue from by- product

Question 28

disadvantages of aerobic system

Answer 28

- delay for oxygen delivery and complex series of reactions - slow energy production and resynthesis (up to 24 hrs) - FFAS (fats) need 15% more O2 for breakdown

Question 29

what does OBLA stand for

Answer 29

onset of blood lactate threshold

Question 30

what is OBLA

Answer 30

an increase in blood lactate above 4 mmol/l (crossing the lactate threshold). this is an increase from 2mmol/l at rest

Question 31

how long does it take for ATP-PC to resynthesise?

Answer 31

3 minutes

Question 32

how long does it take for the glycolytic system to resynthesise?

Answer 32

20 minutes-2 hours

Question 33

how long does it take for the aerobic system to resynthesise?

Answer 33

up to 24hrs