energy systems and nutrients Flashcards

1
Q

for movement to occur what must the body do

A

transfer stored chemical energy to mechanical energy

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2
Q

atp is bound together by

A

high energy bond

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3
Q

what do we need to do in order to get energy

A

break down the bond between the second and third phosphate molecules

the breakdown leaves us with 2 compounds …. adenosine di phosphate and a loose phosphate molecule

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4
Q

in order to resensythize atp what do we need to do

A

reattach the adp and the phosphate again so that the atp can be broken down

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5
Q

what are the energy systems

A

atp-pc systems… anaerobic
lactic acid system….anaerobic
aerobic energy system

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6
Q

in the use of energy systems if the workout is short with high intensity what type of energy system do we use

A

atp–pc system

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7
Q

longer workout with high intensity what system do we use

A

lactic acid system

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8
Q

longer exercise and submaximal pace what energy system do we use

A

aerobic system

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9
Q

what is the most inefficient energy system

A

atp| pcr system

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10
Q

what part of the body is atp stored for quick access

A

muscle and the liver

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11
Q

what is atp broken down to in order to generate energy for the body

A

ADP PLUS P

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12
Q

ADVANTAGES OF THE PC SYSTEM

A

can be generated quickly
no fatiguing by products
creatine suplimentation extends the time that the atp pcsystem can be utilized

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13
Q

when is the lactic acid system used

A

when the oxygen supply is inadequte
when pc runs out the body uses glycogen
lasts 10-60 secs

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14
Q

lactic acid breaks down glycogen to form atp through a process called what

A

anaerobic glycolysis or glycolysis

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15
Q

one molecule of glucose from the blood and 1 molecule of glycogen will produce how many atps respectively

A

2 atp

3 atp

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16
Q

what makes the muscle feel very weak and heavy

A

lactic acid build up

17
Q

which is the most efficient and slowest energy system

A

aerobic

18
Q

in aerobic system if oxygen is present the pyruvic acid is converted into what

A

34 molecules of atp

19
Q

what is the waste product of the aerobic system

A

carbon dioxide and water

20
Q

aerobic system provides the body with what

A

prolonged and steady supply of energy

21
Q

how many amount of atp does each system produce

A

atp\pcr ….. 1 mole
glycolytic system …2 moles
oxidative system …38 moles

22
Q

state where lactate contributes to glucose production in known as

A

gluconeogenesis

23
Q

what is lactate threshold

A

first accumulation of blood lactate above resting conc

24
Q

what marks the point where the body starts using carbohydrate as a primary fuel and stops using fat as its primary fuel

A

lactate threshold

25
Q

the point at which the body cant sustain a high intensity work out anly longer is what

A

onset of blood lactate accumulation

26
Q

reasons for a high blood lactate threshold in trained athletes

A

genetic endownment

local adaptations that favour less production of la and rapid removal rate

27
Q

carbohydrate is stored as wha in the muscles and liver and when carbohydrate is digested its broken down to what

A

glycogen

glucose

28
Q

during rest conditions what source of food produces the majority of required atp

A

fats

29
Q

process by which amino acids is broken down in glucose is called what

A

gluconeogenesis

30
Q

during HIIT workout in limited oxygen what source pf energy is preffereed

A

glycogen

31
Q

causes of fatigue

A

delayed onset muscle soreness
neuromuscular fatigue
accumulation of metabolic by products
decreased energy