Biochem Sports Nutrition

Alannah McDonnell
Quiz by Alannah McDonnell, updated more than 1 year ago
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Description

Quiz on Sports Nutrition, created by Alannah McDonnell on 22/03/2018.

Resource summary

Question 1

Question
What energy source is predominant for activities lasting <15 secs?
Answer
  • Phosphagen
  • Glycolytic
  • Mitochondrial

Question 2

Question
What energy source is predominant for activities lasting <2 min?
Answer
  • Glycolytic
  • Phosphagen
  • Mitochondrial

Question 3

Question
What energy source is predominant for activities lasting <5 min?
Answer
  • Phosphagen
  • Glycolytic
  • Mitochondrial respiration

Question 4

Question
As exercise intensity increases, what happens to the proportion of energy supplied by carbohydrate?
Answer
  • increases
  • decreases
  • doesn't change

Question 5

Question
Which of these fuels can be used by muscle?
Answer
  • glycogen reserve
  • plasma glucose
  • TAG from plasma lipoproteins
  • Plasma non-estreified FAs
  • Plasma ketone bodies
  • TAG from adipose tissue reserves

Question 6

Question
which of these will not effect the type of fuel used by muscle?
Answer
  • intensity of work
  • duration of exercise
  • fed state
  • fasting state
  • day of the week

Question 7

Question
what type of power output will anaerobic glycolysis have?
Answer
  • modest
  • large
  • small

Question 8

Question
how long can anaerobic glycolysis support muscle contraction?
Answer
  • up to 10 mins only
  • up to 1 min only
  • up to 5 min only
  • up to 30 mins only

Question 9

Question
what type of muscle fibres are mainly used with anaerobic glycolysis?
Answer
  • fast twitch fibres
  • slow twitch fibres
  • mixed fibres

Question 10

Question
What type of power output does aerobic metabolism have?
Answer
  • very low
  • moderate
  • very high

Question 11

Question
how long can aerobic metabolism support muscle contraction?
Answer
  • up to 10 mins
  • up to 10 hours
  • for multiple days
  • for multiple weeks
  • 1 min

Question 12

Question
What type of concentration is lactate accumulated in aerobic physical work?
Answer
  • high concentration
  • not high concentration

Question 13

Question
What is the limit of accumulation of lactic acid in the muscle cell?
Answer
  • 25mM
  • 25M
  • 10mM
  • 10M

Question 14

Question
What are the classifications of doping agents?
Answer
  • increasing endurace
  • increasing muscle mass
  • decreasing fatigue
  • improving recovery
  • decreasing hunger
  • increasing energy use
  • decreasing dehydration

Question 15

Question
Doping agents can be classified according to their specific effects
Answer
  • True
  • False

Question 16

Question
Extremely high hematocrit value could induce serious, deleterious consequences, including:
Answer
  • heart attack
  • stroke
  • embolism

Question 17

Question
EPO can be tested by determining hematocrit, what is the maximum acceptable?
Answer
  • 50%
  • 25%
  • 10%
  • 75%
  • 90%

Question 18

Question
What are the doping substances most widely used for improving muscle mass and strength?
Answer
  • anabolic androgen steroids
  • catabolic androgen steroids
  • EPO
  • aromatase inhibitors
  • bets -2 agonists

Question 19

Question
Aromatase inhibitors...
Answer
  • slow the conversion of testosterone to estradiol, increasing the steady state concentration of testosterone.
  • slow the conversion of estradiol to testosterone, increasing the steady state concentration of estradiol
  • are used for treatment of asthma
  • improve aerobic performance
  • rapidly increase muscle mass and strength

Question 20

Question
What steroids are used for treatment of asthma and slightly improve the aerobic performance in the lungs of healthy individuals?
Answer
  • beta-2-agonists
  • aromatase inhibitors
  • anabolic steroids
  • androgen steroids

Question 21

Question
What is the most anabolic hormone in the human body?
Answer
  • insulin
  • androgen
  • testosterone
  • ADH
  • thyroxine

Question 22

Question
How do some substances decrease feelings of fatigue and nervousness?
Answer
  • by imitating the effects of the stress hormones epinephrine and norepinephrine
  • by stimulating the release of epinephrine and norepinephrine
  • by supplying rapid energy release
  • placebo effect

Question 23

Question
Which of these decrease feelings of fatigue and nervousness?
Answer
  • amphetamine derivatives
  • ephedrine
  • cocaine
  • caffeine
  • glucose
  • beta-2 antagonists

Question 24

Question
In aerobic physical activity the metabolic fuels (carbs and lipids) a pretty completely oxidized in the citric acid cycle and electron transport system
Answer
  • True
  • False

Question 25

Question
A large percentage of the energy for aerobic physical activity comes from...
Answer
  • The oxidation of lipids
  • The reduction of lipids
  • The oxidation of fatty acids
  • The reduction of fatty acids
  • Proteins

Question 26

Question
High concentration of blood lactate May completely replace glucose as a substrate for oxidation during very active exercise in human brain
Answer
  • True
  • False

Question 27

Question
Which of these are sources of muscle glucose for glycolytic metabolism?
Answer
  • Blood glucose from liver glycogen
  • Glucose from glycogenolysis from muscle glycogen
  • Blood glucose from an exogenous source
  • Lactic acid
  • Pyruvic acid

Question 28

Question
Glucogenic protein as a fuel source may be used to form
Answer
  • Pyruvate
  • Oxaloacetate
  • Malate
  • Acetyl Co A
  • Acetoacetate

Question 29

Question
Ketogenic protein as a fuel source may be used to form
Answer
  • Acetylene Co A
  • Acetoacetate
  • Pyruvate
  • Oxaloacetate
  • Malate

Question 30

Question
Epinephrine stimulates...
Answer
  • Glycogen breakdown
  • Glycogen storage
  • Acetyl co A

Question 31

Question
Muscle glycogen gives [blank_start]immediate[blank_end] energy, metabolism is done directly by [blank_start]cell[blank_end], its the [blank_start]primary energy[blank_end] for an athlete. Liver glycogen gives [blank_start]short term [blank_end]energy storage for [blank_start]muscle and brain[blank_end], metabolism is done by [blank_start]glucose phosphatase[blank_end] and stores are [blank_start]half used[blank_end] after 1 hour of intense exercise.
Answer
  • immediate
  • cell
  • primary energy
  • short term
  • muscle and brain
  • glucose phosphatase
  • half used

Question 32

Question
Simple carbs have [blank_start]rapid[blank_end] absorption, rapid [blank_start]increase[blank_end] in blood glucose, [blank_start]strong[blank_end] increase in insulin and glucose is stored as glycogen and [blank_start]fat[blank_end] because [blank_start]TCA cycle[blank_end] is saturated with [blank_start]acetyl Co A[blank_end]. Complex carbs have a [blank_start]slow[blank_end] absorption and slow increase in blood glucose, they have a [blank_start]lesser[blank_end] insulin response and maximize [blank_start]glucose[blank_end] stored as [blank_start]glycogen[blank_end]. [blank_start]Complex carbs[blank_end] are preferred for athletes.
Answer
  • Complex carbs
  • simple carbs
  • rapid
  • slow
  • strong
  • lesser
  • glucose
  • glycogen
  • fat
  • TCA cycle
  • acetyl Co A
  • increase
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