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Nutrition > Fat > Flashcards

Fat Flashcards

1
Q

What are triglycerides

A

3 fatty acids with one glycerol molcules

major form of fat in the body

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2
Q

what does omega show

A

where the double bond on the chain in

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3
Q

role of adipose tissue

A

sengery store
signalling tissue - endocrine function
appetite

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4
Q

what affect does training have on the amount of triglyceride in the body

A

increase the amount in the muscle

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5
Q

what causes oxiative capacity to increase

A

exercise training
calorie restricition
insulin senticty drugs

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6
Q

what causes oxidative capacity to decrease

A

inactivity
obesity
high fat diets

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7
Q

what is the location of lipid droplets in ahtletes

A

close to the mitochondria

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8
Q

what is the location of lipid droplets in obese

A

droplets are spread all over, not untilaised by the mitchondria

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9
Q

fat and exercise intenisty

A

fat is used as a fuel at lower intensity up tp approx 60% vo2 max

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10
Q

describe the breakdown of fat

A

long chain FA broken down into acyl-CoA
passes into the mitochondria via the caranitne shuffle
broken down by B-oxidation into acetyl-CoA

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11
Q

what is the effect of increase fat availabilty

A

increases fat oxidation and spares CHO - better peformance

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12
Q

effect of pre exercise fat feeding

A

increases fat oxidationa nd spares muscle glycogen

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13
Q

effect of glucose feeding proi

A

increases RER

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14
Q

effect of incraesed FFA avalibilty on endurance perfomrance

A

no impact

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15
Q

effect of low fat intake and diet

A

leads to progressive depletion of IMTG

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16
Q

effct of increasin fat above normal range

A

can result in greater fat oxidation

leads to lower muscle glycogen stores

17
Q

effect of high fat diet on high intenisty events

A

reduce performance

18
Q

what is the effect of having a higher N3 to N6 balance

A

less inflammatory mediators are produced

19
Q

effect on insulin on lipogensis

A

increases lipogensis
FA –> TG
(decrease Lipolysis) because if an increase in glucose

20
Q

effect of adrenline on lipolysis

A

increases
stimulates HSL (Hormone sentivite lipase)
TG –> FA

21
Q

how does fat enter the muscle cell

A

faciliated diffusion via FATCD36 and FABPpm (fatty acid binding protien)

22
Q

which muscle type has more transporters and fat oxidation

A

type I

23
Q

what limits FA entering the muscel

A

not enough trasnporters

transporters are saturated

24
Q

how are fatty acids activated

A

by CoASH

actiavtes fatty acid to acyl-CoA

25
Q

where is Co-ASH required

A

CHO oxidation
B-oxidation
FA activation

Nutrition (11 decks)

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