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sport and exercise science > energy systems > Flashcards

energy systems Flashcards

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1
Q

what are the three energy systems

A

atp-pc system-anaerobic
anaerobic glycolysis system
aerobic system

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2
Q

what is the app-pc system also known as

A

phosphate system

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3
Q

what is atp

A

adenosine triphosphate is a molecule in the cell the allows for quick and easy access to energy when needed by the cell’s organelles

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4
Q

what does atp do

A

releases energy when the chemical bonds are broken

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5
Q

atp system

A

doesn’t require oxygen to create atp
supplies about 10 seconds of energy
uses our bodies stored atp

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6
Q

atp waste products

A

has none

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7
Q

sporting events for the atp

A

weight lifting and long/high jump

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8
Q

anaerobic glycolysis

A

creates atp from glucose
doesn’t need oxygen
waste product is lactic acid which fatigues the muscle
produces energy for 10 seconds-2 minutes
sporting events are 200m swim, 400m sprint

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9
Q

aerobic system

A

uses oxygen to convert nutrients to atp
no waste products
sporting events are walking, marathons, triathlons, cross country skiing, afl midfielder
3+ hours

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10
Q

food=

A

energy - atp

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11
Q

what do the three systems do together

A

all work together to continually resynthesize atp

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12
Q

how much atp is stored in the muscle

A

about 2-3 seconds

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13
Q

how does the atp-pc system work

A

it uses up the atp in the muscles first then uses creatine phosphate to resynthesise atp until the cp runs out (6-8 secs)

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14
Q

how do we test the atp-pc system

A

muscular power-vertical jump or basketball throw

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15
Q

how do we test the anaerobic glycolysis system

A

muscular endurance- pushups situps and lunges for 2mins

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16
Q

aerobic system- preferred fuels for fats

A

rest and extended exercise (3+ hours)

17
Q

aerobic system- preferred fuels for carbohydrates

A

exercise up to approx 3 hours

18
Q

aerobic system- preferred fuels for proteins

A

used only at a last resort - ultra triathlons

19
Q

how do we test the aerobic system

A

cardiovascular endurance - 12 minute walk run and record the distance covered in 12 mins

20
Q

example of energy system interplay - afl

A

atppc- kicking for goal
anaerobic glycolysis- repeat efforts to tackle; sustained sprint
aerobic-tagging your player; jogging; walking; resting in position; recovery

21
Q

where are carbohydrates stored

A

blood (glucose)
muscles (glycogen)
excess (liver adipose tissue)

22
Q

where are fats stored

A

blood (fatty acid)
muscles (triglycerides)
excess (adipose tissue)

23
Q

where are proteins stored

A

blood (amino acids)
muscles (amino acids)
excess (adipose tissue)

24
Q

how do we get energy

A

the breakdown of adenosine triphosphate

25
Q

atp is the bodies ………….. of all body cells

A

currency

26
Q

what does atp consist of

A

an adenosine molecule and 3 phosphate groups

27
Q

what happens when the bond breaks

A

large amount of energy is released which creates adp (adenosine and 2 phosphate)and an inorganic phosphate

28
Q

how can atp be resynthesized

A

fats, proteins, carbs

29
Q

CHO=

A

carbohydrates

30
Q

FAT=

A

lipids

31
Q

PROTEIN-blood muscle and excess

A

amino acids, amino acids and adipose tissue

32
Q

FAT- blood mucscle and excess

A

fatty acids, triglycerides, adipose tissue

33
Q

CHO-blood muscle and excess

A

glucose, glycogen and liver adipose tissue

34
Q

example of carbs

A 
high gi (rapidly digested and absorbed)- white bread, soft drinks
low gi (digested slowly)- grain bread, rice , pasta
35
Q

example of fats

A 
oil
avocado 
Nuts
Nut butters
Fish
Processed foods
Milk
Cream
36
Q

example of proteins

A 
meat
Nuts
Lentils
Tofu
Beans

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