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BioChem Energy Balance Quiz 2
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What are the four forms of energy our bodies use?
Chemical
Electrical
Mechanical
Thermal
What are the three sources of stored energy and in what order are they utilized during periods of fasting?
1st-Glycogen
2nd-Adipose fat tissue
3rd-Muscle tissue
What three components make up the total energy requirment?
BMR
TEF
Physical activity
BMR=
Basal Metabolic Rate
RMR=
Resting Metabolic Rate
SDA=
Specific dynamic action or TEF
TEF
Thermal effect of food
TEE
Total energy expenditure
TDEE=
Total daily energy expenditure
What does BMR measure?
Measure of the energy required to maintain the body at rest (not including digestion)
What does resting metabolic rate measure?
BMR + Digestion
What does thermic effect of food (TEF) measure?
The energy needed to absorb and metabolize a macronutrient (i.e. digestion)
What are some factors that increase BMR?
Growth
lean body mass
youth
Stress
Change in environmental temperature
What are some factors that decrease BMR?
Malnutrition
Fasting/starving
Thyroxin
Smoking
Caffeine
lack of sleep
what does the respiratory coefficient (RQ) represent?
estimation of the BMR based on carbon dioxide production
RQ=?
RQ = CO2 eliminated/O2 consumed
Macronutrient RQ's
CHO (carbs) = ?
Fat = ?
Protein = ?
Average mix = ?
RQ = 1 =
CHO (carbs) = 1.0
Fat = 0.7
Protein = 0.8
Average mix = 0.8-0.85
RQ = 1 = complete oxidation
What does adaptive thermogenesis do?
Increased total energy expanded in periods of stress
What are three examples of adaptive thermogenesis?
Extreme cold
Overfeeding
Trauma
What are the two types of natural simple sugars?
Monosaccharides
Disaccharides
What three natural sugars are monosaccharides?
Glucose
Fructose
Galactose
What are the three Disaccharides?
Sucrose
Lactose
Maltose
What are complex carbohydrates?
Starches
Glycogen
(Polyglucose molecules)
What types of fatty acids have no double bonds?
Saturated
Unsaturated fatty acids consist of ?
Monounsaturated (double bonds)
Polyunsaturated (Multiple double bonds)
-omega 3 & 6
What are the characteristics of metabolic pathways?
Irreversible
Every pathway has a committed step
Metabolic pathways are regulated
some metabolic pathways are compartmentalized
Author
bradley.knox
ID
179764
Card Set
BioChem Energy Balance Quiz 2
Description
BioChem
Updated
2012-10-25T02:42:37Z
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