Quiz by Alannah McDonnell, created more than 1 year ago

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

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	Created by Alannah McDonnell over 6 years ago

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Biochem Sports Nutrition

Question 1 of 32

1

What energy source is predominant for activities lasting <15 secs?

Select one of the following:

Phosphagen
Glycolytic
Mitochondrial

Explanation

Question 2 of 32

1

What energy source is predominant for activities lasting <2 min?

Select one of the following:

Glycolytic
Phosphagen
Mitochondrial

Explanation

Question 3 of 32

1

What energy source is predominant for activities lasting <5 min?

Select one of the following:

Phosphagen
Glycolytic
Mitochondrial respiration

Explanation

Question 4 of 32

1

As exercise intensity increases, what happens to the proportion of energy supplied by carbohydrate?

Select one of the following:

increases
decreases
doesn't change

Explanation

Question 5 of 32

1

Which of these fuels can be used by muscle?

Select one or more of the following:

glycogen reserve
plasma glucose
TAG from plasma lipoproteins
Plasma non-estreified FAs
Plasma ketone bodies
TAG from adipose tissue reserves

Explanation

Question 6 of 32

1

which of these will not effect the type of fuel used by muscle?

Select one of the following:

intensity of work
duration of exercise
fed state
fasting state
day of the week

Explanation

Question 7 of 32

1

what type of power output will anaerobic glycolysis have?

Select one of the following:

modest
large
small

Explanation

Question 8 of 32

1

how long can anaerobic glycolysis support muscle contraction?

Select one of the following:

up to 10 mins only
up to 1 min only
up to 5 min only
up to 30 mins only

Explanation

Question 9 of 32

1

what type of muscle fibres are mainly used with anaerobic glycolysis?

Select one of the following:

fast twitch fibres
slow twitch fibres
mixed fibres

Explanation

Question 10 of 32

1

What type of power output does aerobic metabolism have?

Select one of the following:

very low
moderate
very high

Explanation

Question 11 of 32

1

how long can aerobic metabolism support muscle contraction?

Select one of the following:

up to 10 mins
up to 10 hours
for multiple days
for multiple weeks
1 min

Explanation

Question 12 of 32

1

What type of concentration is lactate accumulated in aerobic physical work?

Select one of the following:

high concentration
not high concentration

Explanation

Question 13 of 32

1

What is the limit of accumulation of lactic acid in the muscle cell?

Select one of the following:

25mM
25M
10mM
10M

Explanation

Question 14 of 32

1

What are the classifications of doping agents?

Select one or more of the following:

increasing endurace
increasing muscle mass
decreasing fatigue
improving recovery
decreasing hunger
increasing energy use
decreasing dehydration

Explanation

Question 15 of 32

1

Doping agents can be classified according to their specific effects

Select one of the following:

True
False

Explanation

Question 16 of 32

1

Extremely high hematocrit value could induce serious, deleterious consequences, including:

Select one or more of the following:

heart attack
stroke
embolism

Explanation

Question 17 of 32

1

EPO can be tested by determining hematocrit, what is the maximum acceptable?

Select one of the following:

50%
25%
10%
75%
90%

Explanation

Question 18 of 32

1

What are the doping substances most widely used for improving muscle mass and strength?

Select one of the following:

anabolic androgen steroids
catabolic androgen steroids
EPO
aromatase inhibitors
bets -2 agonists

Explanation

Question 19 of 32

1

Aromatase inhibitors...

Select one of the following:

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

Explanation

Question 20 of 32

1

What steroids are used for treatment of asthma and slightly improve the aerobic performance in the lungs of healthy individuals?

Select one of the following:

beta-2-agonists
aromatase inhibitors
anabolic steroids
androgen steroids

Explanation

Question 21 of 32

1

What is the most anabolic hormone in the human body?

Select one of the following:

insulin
androgen
testosterone
ADH
thyroxine

Explanation

Question 22 of 32

1

How do some substances decrease feelings of fatigue and nervousness?

Select one of the following:

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

Explanation

Question 23 of 32

1

Which of these decrease feelings of fatigue and nervousness?

Select one or more of the following:

amphetamine derivatives
ephedrine
cocaine
caffeine
glucose
beta-2 antagonists

Explanation

Question 24 of 32

1

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

Select one of the following:

True
False

Explanation

Question 25 of 32

1

A large percentage of the energy for aerobic physical activity comes from...

Select one of the following:

The oxidation of lipids
The reduction of lipids
The oxidation of fatty acids
The reduction of fatty acids
Proteins

Explanation

Question 26 of 32

1

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

Select one of the following:

True
False

Explanation

Question 27 of 32

1

Which of these are sources of muscle glucose for glycolytic metabolism?

Select one or more of the following:

Blood glucose from liver glycogen
Glucose from glycogenolysis from muscle glycogen
Blood glucose from an exogenous source
Lactic acid
Pyruvic acid

Explanation

Question 28 of 32

1

Glucogenic protein as a fuel source may be used to form

Select one or more of the following:

Pyruvate
Oxaloacetate
Malate
Acetyl Co A
Acetoacetate

Explanation

Question 29 of 32

1

Ketogenic protein as a fuel source may be used to form

Select one or more of the following:

Acetylene Co A
Acetoacetate
Pyruvate
Oxaloacetate
Malate

Explanation

Question 30 of 32

1

Epinephrine stimulates...

Select one of the following:

Glycogen breakdown
Glycogen storage
Acetyl co A

Explanation

Question 31 of 32

1

Muscle glycogen gives ❌ energy, metabolism is done directly by ❌, its the ❌ for an athlete. Liver glycogen gives ❌energy storage for ❌, metabolism is done by ❌ and stores are ❌ after 1 hour of intense exercise.

Drag and drop to complete the text.

immediate

cell

primary energy

short term

muscle and brain

glucose phosphatase

half used

Explanation

Question 32 of 32

1

Simple carbs have ❌ absorption, rapid ❌ in blood glucose, ❌ increase in insulin and glucose is stored as glycogen and ❌ because ❌ is saturated with ❌. Complex carbs have a ❌ absorption and slow increase in blood glucose, they have a ❌ insulin response and maximize ❌ stored as ❌. ❌ are preferred for athletes.

Drag and drop to complete the text.

Complex carbs

simple carbs

rapid

slow

strong

lesser

glucose

glycogen

fat

TCA cycle

acetyl Co A

increase

Explanation