Test 1 Review (U1-4) Flashcards
Define a calorie
The amount of energy required to raise 1kg (1L) of water by 1 degree Celsius.
How many calories does fat contribute per gram?
9
How many calories do Protien and carbs contain per gram?
4
How many calories does alcohol contribute per gram?
7
Is alcohol considered a nutrient?
No, it interferes w/ growth and maintenance and repair of body tissues.
Recommended percentage of daily intakes from carbs, lipids, and Protien
Carbs: 55% (45-65 range)
Lipids: 30% (20-35 range)
Proteins 10-35% (some say 10-15)
No more than _% of daily fat should be saturated fat
10%
80% of our daily Protein intake should come from?
Plant based protein
What percent of energy expenditure (usage) comes from the BMR (involuntary activities)
50-65%
What hormone directly controls basal metabolism?
Thyroxin
What percentage of daily calories are spent thru physical activity?
30%
What percentage of daily calories are spent thru the thermic effect of food?
5-10%
How does age affect BMR?
As you age, it goes down.
How does weight/height affect BMR?
Bigger you are, higher the BMR
How does fever & stress affect BMR?
It goes up
How does environmental temp. affect BMR?
Hot temp & cold temp both equal higher BMR
How does fasting/starvation affect BMR?
It goes down
How does thyroid/thyroxine affect BMR?
high thyroxine increases BMR, low decreases
How does malnutrition affect BMR?
Goes down
What is the hormone leptin?
Stops you from feeling full
DRI
Dietary Reference Intakes
RDA
Recommended Dietary Allowances
AI
Adequate Intakes
UL
Tolerable Upper Intakes Level